PhD (summa cum laude): 2004, Osnabrück University.
Post-doctoral research experience:
2005-2007: Radio Laboratory, Helsinki University of Technology, Finland
2008-2010: Dept. Electronics and Electromagnetics, University of Sevilla, Spain
2010-2011: Nonlinear Physics Centre, Australian National University, Canberra, Australia
2011-2012: Metamaterials Lab, ITMO University, St.Petersburg, Russia
2012-2014: CUDOS, School of Physics, University of Sydney, Australia.
Joined the University of Technology Sydney in November 2014
Editor, "Metamaterials" (Elsevier), 2007–2012; "Photonics and Nanostructures" (Elsevier) since 2012; Associate Editor with Scientific Reports (NPG) since 2013.
Project Leader for Functional Metamaterials and Metadevices project with ARC Centre of Excellence for Ultrahigh bandwidth Devices for Optical Systems (CUDOS).
Member of European Physical Society and Australian Optical Society.
Reviewer for Nature Materials, Nature Physics and Nature Communications; Physical Review Letters and Physical Review A, B, E; Advanced Materials and Advanced Optical Materials; Applied Physics Letters and Journal of Applied Physics; Optics Express, JOSA B and other OSA journals, several IoP, IET and IEEE journals, and other scientific periodicals.
Can supervise: YES
Theoretical electrodynamics with a specific interest to effective medium description of metamaterials as well as development of nonlinear, tunable and reconfigurable metamaterials, and introducing novel degrees of freedom to metamaterial design.
Gorlach, MA & Lapine, M 2020, 'Boundary conditions for the effective-medium description of subwavelength multilayered structures', PHYSICAL REVIEW B, vol. 101, no. 7.View/Download from: Publisher's site
Sergeev, AA, Pavlov, DV, Kuchmizhak, AA, Lapine, MV, Yiu, WK, Dong, Y, Ke, N, Juodkazis, S, Zhao, N, Kershaw, SV & Rogach, AL 2020, 'Tailoring spontaneous infrared emission of HgTe quantum dots with laser-printed plasmonic arrays', Light: Science and Applications, vol. 9, no. 1.View/Download from: Publisher's site
© 2020, The Author(s). Chemically synthesized near-infrared to mid-infrared (IR) colloidal quantum dots (QDs) offer a promising platform for the realization of devices including emitters, detectors, security, and sensor systems. However, at longer wavelengths, the quantum yield of such QDs decreases as the radiative emission rate drops following Fermi's golden rule, while non-radiative recombination channels compete with light emission. Control over the radiative and non-radiative channels of the IR-emitting QDs is crucially important to improve the performance of IR-range devices. Here, we demonstrate strong enhancement of the spontaneous emission rate of near- to mid-IR HgTe QDs coupled to periodically arranged plasmonic nanoantennas, in the form of nanobumps, produced on the surface of glass-supported Au films via ablation-free direct femtosecond laser printing. The enhancement is achieved by simultaneous radiative coupling of the emission that spectrally matches the first-order lattice resonance of the arrays, as well as more efficient photoluminescence excitation provided by coupling of the pump radiation to the local surface plasmon resonances of the isolated nanoantennas. Moreover, coupling of the HgTe QDs to the lattice plasmons reduces the influence of non-radiative decay losses mediated by the formation of polarons formed between QD surface-trapped carriers and the IR absorption bands of dodecanethiol used as a ligand on the QDs, allowing us to improve the shape of the emission spectrum through a reduction in the spectral dip related to this ligand coupling. Considering the ease of the chemical synthesis and processing of the HgTe QDs combined with the scalability of the direct laser fabrication of nanoantennas with tailored plasmonic responses, our results provide an important step towards the design of IR-range devices for various applications.
Pavlov, D, Gurbatov, S, Kudryashov, S, Danilov, PA, Porfirev, AP, Khonina, SN, Vitrik, OB, Kulinich, SA, Lapine, M & Kuchmizhak, AA 2019, '10-million-elements-per-second printing of infrared-resonant plasmonic arrays by multiplexed laser pulses', OPTICS LETTERS, vol. 44, no. 2, pp. 283-286.View/Download from: Publisher's site
Pavlov, D, Syubaev, S, Kuchmizhak, A, Gurbatov, S, Vitrik, O, Modin, E, Kudryashov, S, Wang, X, Juodkazis, S & Lapine, M 2019, 'Direct laser printing of tunable IR resonant nanoantenna arrays', Applied Surface Science, vol. 469, pp. 514-520.View/Download from: Publisher's site
© 2018 We report on the application of direct femtosecond laser printing for manufacturing periodic nanoantenna structures with various geometry and period, printed on pure or alloyed noble metal films over a silica substrate. By varying applied pulse energy, we have realised a wide range of possible morphologies, from smooth nano-bumps to protruding nanojets with up to 1 μm height, and finally to through microholes. Using several pulse energy levels, we have printed periodic nanojet arrays with periods from 1.75 to 4 μm, and measured their IR reflection spectra. The resonance frequency and magnitude of the resulting absorbance were found to essentially depend on both the periodicity of the arrays and nanojet geometry. We explain these observations by considering nanojet-assisted plasmon excitation running along the nanojets and along the surface, and found a convincing agreement to the experiments. To this end, we have shown that the reported approach is suitable for designing structures with distinct IR resonances, tunable over a range of at least 2–6 μm. Finally, we have also applied direct laser printing to a variety of noble metal alloys, involving gold, silver and palladium in various combinations and compositions, and showed that nanojets can be reliably printed for such alloys, preserving their chemical composition and its homogeneous volumetric distribution.
© 2018 American Physical Society. We design and analyze theoretically photometamaterials with each meta-atom containing both photodiode and light-emitting diode. Illumination of the photodiode by the light-emitting diode gives rise to an additional optical feedback within each unit cell, which strongly affects resonant properties and nonlinear response of the meta-atom. In particular, we demonstrate that inversion symmetry breaking occurs upon a certain threshold magnitude of the incident wave intensity resulting in an abrupt emergence of second-harmonic generation, which was not originally available, as well as in the reduced third-harmonic signal.
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This is an overview of the recent achievements in exploiting novel degrees of freedom in metamaterial design, which enable sophisticated nonlinear coupling mechanisms and bring enhancement to nonlinear behavior. One of the novel paradigms makes use of mechanical feedback, achieved by embedding electromagnetic resonators within elastic medium or engineering explicit elastic links between them, such as rotational feedback. These designs provide broad-band self-adjustable resonances, self-oscillations, chaotic regimes, nonlinear chirality and, spontaneous chiral symmetry breaking. With this respect, a range of implementations has been analyzed, from flexible helices for microwaves to artificial electrostriction in optics. Another concept benefits from multi-frequency operation, where the properties in completely distinct frequency ranges become entangled through specific metamaterial design –for example, direct optical coupling can be introduced between microwave resonators, providing an independent interaction channel. It was also found that hyperbolic metamaterials can bring notable benefits to classical nonlinear processes by imposing unusual phase matching solutions, with a rich choice of matching combinations. Finally, the boundary structure of metamaterials add yet another possibility to control their properties. Overall, the recent progress in these topics suggests a very positive outlook into the future of nonlinear metamaterials.
Shilkin, DA, Lyubin, EV, Shcherbakov, MR, Lapine, M & Fedyanin, AA 2017, 'Directional Optical Sorting of Silicon Nanoparticles', ACS Photonics, vol. 4, no. 9, pp. 2312-2319.View/Download from: Publisher's site
© 2017 American Chemical Society. Optical manipulation of nanoparticles is a topic of great practical importance, with applications in surface science, colloidal chemistry, microfluidics, biochemistry, and medicine. One of the major highlights of this topic is particle sorting, which serves to create monodisperse systems remotely and to separate particles of different composition and size. Here, we analyze optical forces acting on spherical silicon nanoparticles that exhibit high-quality Mie resonances and demonstrate the potential of optical sorting methods for these systems. In particular, we propose multidirectional static sorting of nanoparticles using noncollinear beams with different wavelengths, which results in all-optical separation into an angular spectrum of sizes. We also validate the proposed methods by considering the operation in the presence of Brownian motion and in the evanescent wave configuration.
Smith, MJA, De Sterke, CM, Wolff, C, Lapine, M & Poulton, CG 2017, 'Enhanced acousto-optic properties in layered media', Physical Review B, vol. 96, no. 6, pp. 1-10.View/Download from: Publisher's site
© 2017 American Physical Society. We present a rigorous procedure for evaluating the photoelastic coefficients of a layered medium in which the periodicity is smaller than the wavelengths of all optical and acoustic fields. Analytical expressions are given for the coefficients of a composite material comprising thin layers of optically isotropic materials. These photoelastic coefficients include artificial contributions that are unique to structured media and arise from the optical and mechanical contrast between the constituents. Using numerical examples, we demonstrate that the acousto-optic properties of layered structures can be enhanced beyond those of the constituent materials. Furthermore, we show that the acousto-optic response can be tuned as desired.
Smith, MJA, Kuhlmey, BT, de Sterke, CM, Wolff, C, Lapine, M & Poulton, CG 2016, 'Metamaterial control of stimulated Brillouin scattering', OPTICS LETTERS, vol. 41, no. 10, pp. 2338-2341.View/Download from: Publisher's site
Smith, MJA, Wolff, C, De Sterke, CM, Lapine, M, Kuhlmey, BT & Poulton, CG 2016, 'Stimulated Brillouin scattering enhancement in silicon inverse opal waveguides', Optics Express, vol. 24, no. 22, pp. 25148-25148.View/Download from: Publisher's site
Smith, MJA, Wolff, C, de Sterke, CM, Lapine, M, Kuhlmey, BT & Poulton, CG 2016, 'Stimulated Brillouin scattering in metamaterials', Journal of the Optical Society of America B, vol. 33, no. 10, pp. 2162-2162.View/Download from: Publisher's site
Duncan, C, Perret, L, Palomba, S, Lapine, M, Kuhlmey, BT & de Sterke, CM 2015, 'New avenues for phase matching in nonlinear hyperbolic metamaterials', SCIENTIFIC REPORTS, vol. 5.View/Download from: Publisher's site
Smith, MJA, Kuhlmey, BT, de Sterke, CM, Wolff, C, Lapine, M & Poulton, CG 2015, 'Electrostriction enhancement in metamaterials', PHYSICAL REVIEW B, vol. 91, no. 21.View/Download from: Publisher's site
Jelinek, L, Lapine, M & McPhedran, RC 2014, 'Applicability of nonresonant artificial diamagnetics', Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 10, pp. 104413-1-104413-5.View/Download from: Publisher's site
© 2014 American Physical Society. Artificial diamagnetics are prominent for achieving extraordinarily strong diamagnetism in a wide frequency range. However, as far as the magnetic fields outside the artificial medium are concerned, bulk conductors show a very similar pattern. The question arises whether the complicated internal structure of artificial diamagnetics can, to this end, be replaced by a simpler object. We show that for an electrically small body, internal structuring is likely to make the effective diamagnetic response weaker than that of a simple conducting object.
© 2014 American Physical Society. This Colloquium presents an overview of the research on nonlinear electromagnetic metamaterials. The developed theoretical approaches and experimental designs are summarized, along with a systematic description of various phenomena available with nonlinear metamaterials.
Liu, M, Powell, D, Shadrivov, I, Kivshar, Y & Lapine, M 2014, 'Chiral torsional metamaterials', Optics and Photonics News, vol. 25, no. 12, p. 51.
Spontaneous chiral symmetry breaking underpins a variety of areas such as subatomic physics and biochemistry, and leads to an impressive range of fundamental phenomena. Here we show that this prominent effect is now available in artificial electromagnetic systems, enabled by the advent of magnetoelastic metamaterials where a mechanical degree of freedom leads to a rich variety of strong nonlinear effects such as bistability and self-oscillations. We report spontaneous symmetry breaking in torsional chiral magnetoelastic structures where two or more meta-molecules with opposite handedness are electromagnetically coupled, modifying the system stability. Importantly, we show that chiral symmetry breaking can be found in the stationary response of the system, and the effect is successfully demonstrated in a microwave pump-probe experiment. Such symmetry breaking can lead to a giant nonlinear polarization change, energy localization and mode splitting, which provides a new possibility for creating an artificial phase transition in metamaterials, analogous to that in ferrimagnetic domains. © 2014 Macmillan Publishers Limited.
Slobozhanyuk, AP, Kapitanova, PV, Filonov, DS, Powell, DA, Shadrivov, IV, Lapine, M, Belov, PA, McPhedran, RC & Kivshar, YS 2014, 'Nonlinear interaction of meta-atoms through optical coupling', Applied Physics Letters, vol. 104, no. 1, pp. 1-5.View/Download from: Publisher's site
We propose and experimentally demonstrate a multi-frequency nonlinear coupling mechanism between split-ring resonators. We engineer the coupling between two microwave resonators through optical interaction, whilst suppressing the direct electromagnetic coupling. This allows for a power-dependent interaction between the otherwise independent resonators, opening interesting opportunities to address applications in signal processing, filtering, directional coupling, and electromagnetic compatibility. © 2014 AIP Publishing LLC.
Belov, PA, Slobozhanyuk, AP, Filonov, DS, Yagupov, IV, Kapitanova, PV, Simovski, CR, Lapine, M & Kivshar, YS 2013, 'Broadband isotropic mu-near-zero metamaterials', APPLIED PHYSICS LETTERS, vol. 103, no. 21.View/Download from: Publisher's site
Lapine, M, Krylova, A, Belov, P, Poulton, CG, McPhedran, RC & Kivshar, Y 2013, 'Broadband Diamagnetism In Anisotropic Metamaterials', Physical Review B, vol. 87, no. 2, pp. 1-7.View/Download from: Publisher's site
We discuss the strategy for achieving the values of the effective magnetic permeability much smaller than unity by employing an appropriate arrangement of metamaterial elements (meta-atoms). We demonstrate that strong diamagnetism over a very wide frequency range can be realized in metamaterials by employing nonresonant elements with deeply subwavelength dimensions. We analyze the effect of the lattice parameters on the diamagnetic response and find that selecting an appropriate lattice type is crucial for optimal performance. Finally, we discuss the optimal characteristics required to obtain the lowest possible values of magnetic permeability and point out an efficient tuning possibility.
Liu, M, Sun, Y, Powell, DA, Shadrivov, IV, Lapine, M, McPhedran, RC & Kivshar, YS 2013, 'Nonlinear response via intrinsic rotation in metamaterials', PHYSICAL REVIEW B, vol. 87, no. 23.View/Download from: Publisher's site
Slobozhanyuk, AP, Lapine, M, Powell, DA, Shadrivov, IV, Kivshar, YS, McPhedran, RC & Belov, PA 2013, 'Flexible Helices for Nonlinear Metamaterials', ADVANCED MATERIALS, vol. 25, no. 25, pp. 3409-3412.View/Download from: Publisher's site
The study of advanced artificial electromagnetic materials, known as metamaterials, provides a link from material science to theoretical and applied electrodynamics, as well as to electrical engineering. Being initially intended mainly to achieve negative refraction, the concept of metamaterials quickly covered a much broader range of applications, from microwaves to optics and even acoustics. In particular, nonlinear metamaterials established a new research direction giving rise to fruitful ideas for tunable and active artificial materials. Here we introduce the concept of magnetoelastic metamaterials, where a new type of nonlinear response emerges from mutual interaction. This is achieved by providing a mechanical degree of freedom so that the electromagnetic interaction in the metamaterial lattice is coupled to elastic interaction. This enables the electromagnetically induced forces to change the metamaterial structure, dynamically tuning its effective properties. This concept leads to a new generation of metamaterials, and can be compared to such fundamental concepts of modern physics as optomechanics of photonic structures or magnetoelasticity in magnetic materials.
Algarin, JM, Freire, MJ, Lopez, MA, Lapine, M, Jakob, PM, Behr, VC & Marques, R 2011, 'Analysis of the resolution of split-ring metamaterial lenses with application in parallel magnetic resonance imaging', APPLIED PHYSICS LETTERS, vol. 98, no. 1.View/Download from: Publisher's site
Boardman, AD, Grimalsky, VV, Kivshar, YS, Koshevaya, SV, Lapine, M, Litchinitser, NM, Malnev, VN, Noginov, M, Rapoport, YG & Shalaev, VM 2011, 'Active and tunable metamaterials', LASER & PHOTONICS REVIEWS, vol. 5, no. 2, pp. 287-307.View/Download from: Publisher's site
Marques, R, Jelinek, L, Freire, MJ, Domingo Baena, J & Lapine, M 2011, 'Bulk Metamaterials Made of Resonant Rings', PROCEEDINGS OF THE IEEE, vol. 99, no. 10, pp. 1660-1668.View/Download from: Publisher's site
Freire, MJ, Jelinek, L, Marques, R & Lapine, M 2010, 'On the applications of mu(r) =-1 metamaterial lenses for magnetic resonance imaging', JOURNAL OF MAGNETIC RESONANCE, vol. 203, no. 1, pp. 81-90.View/Download from: Publisher's site
Lapine, M, Jelinek, L, Freire, MJ & Marques, R 2010, 'Realistic metamaterial lenses: Limitations imposed by discrete structure', PHYSICAL REVIEW B, vol. 82, no. 16.View/Download from: Publisher's site
Lapine, M, Jelinek, L, Marques, R & Freire, MJ 2010, 'Exact modelling method for discrete finite metamaterial lens', IET MICROWAVES ANTENNAS & PROPAGATION, vol. 4, no. 8, pp. 1132-1139.View/Download from: Publisher's site
Minovich, A, Neshev, DN, Powell, DA, Shadrivov, IV, Lapine, M, McKerracher, I, Hattori, HT, Tan, HH, Jagadish, C & Kivshar, YS 2010, 'Tilted response of fishnet metamaterials at near-infrared optical wavelengths', PHYSICAL REVIEW B, vol. 81, no. 11.View/Download from: Publisher's site
Powell, DA, Lapine, M, Gorkunov, MV, Shadrivov, IV & Kivshar, YS 2010, 'Metamaterial tuning by manipulation of near-field interaction', PHYSICAL REVIEW B, vol. 82, no. 15.View/Download from: Publisher's site
The essence of the metamaterial concept from the structural point of view. Particular attention is paid to the macroscopic description of metamaterials and to the corresponding requirements and precautions for using that concept. General advantages of metamaterials are also pointed out. Next, the main research directions related to metamaterials are briefly overviewed and the key references are provided. Finally, the most probable sources of disagreement and misunderstanding within the field are summarised. © 2007 The Institution of Engineering and Technology.
Gorkunov, MV, Lapine, MV & Tretyakov, SA 2006, 'Methods of crystal optics for studying electromagnetic phenomena in metamaterials: Review', CRYSTALLOGRAPHY REPORTS, vol. 51, no. 6, pp. 1048-1062.View/Download from: Publisher's site
Ikonen, P, Lapine, M, Nefedov, I & Tretyakov, S 2006, 'Vector circuit theory for spatially dispersive uniaxial magneto-dielectric slabs', PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 63, pp. 279-294.View/Download from: Publisher's site
Lapine, M, Gorkunov, M & Ringhofer, KH 2003, 'Nonlinearity of a metamaterial arising from diode insertions into resonant conductive elements', Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 67, no. 6 2.
It was demonstrated that with the help of simple electronic components, it was possible to construct a metamaterial which possesses nonlinear response. It was shown how the macroscopic properties of this material can be controlled by the characteristics of the structure elements, their arrangement, and the properties of nonlinear insertions. Thus, various processes known in nonlinear optics may be performed in the microwave range with the help of the proposed metamaterial.
Lapine, M, Gorkunov, M & Ringhofer, KH 2003, 'Nonlinearity of a metamaterial arising from diode insertions into resonant conductive elements', PHYSICAL REVIEW E, vol. 67, no. 6.View/Download from: Publisher's site
Gorkunov, M, Lapine, M, Shamonina, E & Ringhofer, KH 2002, 'Effective magnetic properties of a composite material with circular conductive elements', EUROPEAN PHYSICAL JOURNAL B, vol. 28, no. 3, pp. 263-269.View/Download from: Publisher's site
Trissl, HW, Bernhardt, K & Lapin, M 2001, 'Evidence for protein dielectric relaxations in reaction centers associated with the primary charge separation detected from Rhodospirillum rubrum chromatophores by combined photovoltage and absorption measurements in the 1-15 ns time range', BIOCHEMISTRY, vol. 40, no. 17, pp. 5290-5298.View/Download from: Publisher's site
Powell, DA, Liu, M & Lapine, M 2015, 'Coupled electromagnetic and elastic dynamics in metamaterials' in Shadrivov, IV, Lapine, M & Kivshar, YS (eds), Nonlinear, Tunable and Active Metamaterials, Springer, Germany, pp. 59-87.View/Download from: Publisher's site
Metamaterials are well established in the field of electromagnetism, where they have demonstrated a wide variety of exotic material properties. More recently, mechanical metamaterials have also been shown to be quite promising in achieving exotic properties for acoustic waves. Here we discuss an emerging class of metamaterials with both electromagnetic and elastic properties, which are coupled to each other, giving rise to a new range of metamaterial properties. In particular, this can yield a very strong nonlinear response, including bistable states and self-oscillations. We present several structures which exhibit these properties, and experimentally demonstrate their feasibility.
Kuchmizhak, A, Pavlov, D, Porfirev, A & Lapine, M 2019, 'Ultra-fast laser printing of ir-resonant plasmonic metasurfaces', 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019.View/Download from: Publisher's site
© 2019 IEEE. We report on ultra-fast fabrication of patterned plasmonic metasurfaces, suitable for production of high-quality resonances in near-infra-red and mid-infra-red range. Fabrication is realised using direct laser printing with 200 fs pulses at 515 nm, tightly focused onto a 50-100 nm gold surface over a glass substrate (Fig. 1 a). By demultiplexing the beam into linear arrays and using a high repetition rate, up to ten million structural features per second have been printed . Depending on the energy of the pulse (Fig. 1 b), it was possible to produce a range of structural features, from smooth nano-bumps at lower energies, to protruded nano-jets with up to 900 nm height, and then over ablation regime, micro-holes of about 1 μ m diameter (Fig. 1 a). All these structures have been produced in the form of periodic arrays (Fig. 1 c) with the periods from 1 to several μ m .
Lyubin, EV, Shilkin, DA, Shcherbakov, MR, Lapine, M & Fedyanin, AA 2018, 'Multidirectional optical sorting of Mie resonant dielectric nanoparticles (Conference Presentation)', Nanophotonics VII, Nanophotonics, SPIE.View/Download from: Publisher's site
Smith, MJA, Wolff, C, De Sterke, CM, Lapine, M & Poulton, CG 2017, 'Metamaterials for enhanced acousto-optic interactions', 13th International Conference on Theoretical and Computational Acoustics, ICTCA 2017, International Conference on Theoretical and Computational Acoustics, Vienna, Austria, pp. 91-91.
Smith, MJA, Wolff, C, Lapine, M, de Sterke, CM & Poulton, CG 2017, 'Metamaterials for opto-acoustic interactions', PROCEEDINGS OF INTERNATIONAL CONFERENCE ON METAMATERIALS AND NANOPHOTONICS (METANANO-2017), International Conference on Metamaterials And Nanophotonics (METANANO), AMER INST PHYSICS, Vladivostok, RUSSIA.View/Download from: Publisher's site
Lapine, M 2016, 'Strong boundary effects in microwave metamaterial samples', Proceedings of the 2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016, IEEE Radio and Antenna Days of the Indian Ocean (RADIO), IEEE, St. Gilles-les-Bains, Reunion, pp. 1-2.View/Download from: Publisher's site
© 2016 IEEE.The majority of metamaterial ideas are expressed in terms of effective material parameters. However, in many cases that kind of description fails, for a number of reasons such as strong spatial dispersion. One of the less known problems stems from the finite size of realistic metamaterials, which makes the total number of individual elements insufficient for an effective medium description, and promotes significant boundary effects. We present an analysis of this situation and point out that even for ideally shaped metamaterial samples there is a remarkable difference from theoretical predictions. As an example, we report the implications of finite size for metamaterial lenses.
Lapine, M, Poulton, CG & McPhedran, RC 2016, 'On the deviation of metamaterial spheres from effective medium', 2016 10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2016, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Chania, Greece, pp. 196-198.View/Download from: Publisher's site
© 2016 IEEE.We analyse the convergence of the actual properties of finite subwavelength metamaterial samples where all the prerequisites for a reliable effective medium description, except for the finite size, are fulfilled, towards the effective medium predictions. We show that the convergence is rather slow and it is likely that hundreds of thousands of individual meta-atoms must be assembled together before the properties of the resulting structure can be claimed to correspond to those a bulk material. These observations are directly relevant for practical design of metamaterials and their future development.
Smith, MJ, de Sterke, CM, Kuhlmey, B, Wolff, C, Lapine, M & Poulton, C 2016, 'Elastic modelling of electrostriction in dielectric composite materials', Photonics and Fiber Technology 2016 (ACOFT, BGPP, NP), Photonics and Fiber Technology 2016 (ACOFT, BGPP, NP), OSA, Sydney, Australia.View/Download from: Publisher's site
The electrostriction of a composite material does not only depend on the electrostrictive properties of the constituents, but also includes an additional mechanical response term. We compare two different models to calculate this contribution
Smith, MJA, de Sterke, CM, Kuhlmey, BT, Poulton, C, Lapine, M & Wolff, C 2016, 'Suppression of Stimulated Brillouin Scattering in composite media', 2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 16th International Conference on Numerical Simulation of Optoelectronic Devices, IEEE, Sydney, pp. 23-24.View/Download from: Publisher's site
Overcoming stimulated Brillouin scattering (SBS) is a major challenge in optical telecommunications networks and in fiber lasers. We evaluate the SBS gain coefficient for an all-dielectric composite material comprising a cubic, subwavelength array of spheres in a uniform background. We demonstrate total SBS suppression in fused silica using GaAs spheres
de Sterke, CM, Duncan, C, Perret, L, Palomba, S, Lapine, M & Kuhlmey, BT 2015, 'Phase matching in layered hyperbolic metamaterials', European Quantum Electronics Conference, Optical Society of America, Munich Germany, pp. EH_P_8-EH_P_8.
Lapine, M & Jelinek, L 2015, 'New aspects of artificial diamagnetics', 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Oxford, UK, pp. 172-174.View/Download from: Publisher's site
Lapine, M, Poulton, CG & McPhedran, RC 2015, 'Mesoscopic effects in discretised metamaterial spheres', Proceedings of SPIE - The International Society for Optical Engineering, SPIE Micro + Nano Materials, Devices, and Applications, International Society for Optics and Photonics, Sydney, NSW, Australia, pp. 96680L-96680L.View/Download from: Publisher's site
Wolff, C, Kuhlmey, B, de Sterke, CM, Smith, MJ, Lapine, M & Poulton, CG 2015, 'Artificial electrostriction in metamaterials', Proceedings of SPIE, SPIE Micro+Nano Materials, Devices, and Applications 2015, Society of Photo-optical Instrumentation Engineers (SPIE), Sydney, pp. 20-20.
Lapine, M 2014, 'Structural tricks for enhanced metamaterial properties', 2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2014, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Denmark, pp. 178-180.View/Download from: Publisher's site
© 2014 IEEE. This contribution presents an overview of novel structural approaches to the design of metamaterials, which enhance their performance by boosting emerging functionality. The two characteristic features of these approaches are hybrid assembly and finiteness effects, both providing unusual links between material properties and triggering unexpected effects. In a series of examples, the advantages of hybrid and mesoscopic designs will be demonstrated.
Liu, M, Sun, Y, Powell, DA, Shadrivov, IV, Lapine, M, McPhedran, RC & Kivshar, YS 2013, 'Twists and shifts make nonlinear metamaterials', 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013, Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference, IEEE, Munich, Germany.View/Download from: Publisher's site
Recent studies have demonstrated that it is possible to modify the properties of metamaterials by electromagnetic waves via inducing mechanical deformations of samples and therefore changing material properties. As an example, optical rotation of chiral particles was demonstrated , and a rich variety of nonlinear behaviour was achieved with magneto-elastic metamaterials  . The range of possible effects achievable in this way promises to be richer than in the prominent area of optomechanics, because the greater flexibility in metamaterial design overcomes the limits of available material functionalities, and offers wider possibilities for optimisation. At the same time, the implementation of magnetoelastic metamaterials  remains challenging and in some cases, such as the conformational nonlinearity in resonant spirals, remains inaccessible for optics. The reason for this is that the magnetic forces, employed in the initial designs, are relatively weak, so such materials require either high power or extremely small elastic restoring forces, which poses a considerable manufacturing challenge. We recall, however, that earlier research on structurally tunable metamaterials  indicated that near-field interaction may significantly improve the tunability range and leads to various effects associated with near-field coupling. © 2013 IEEE.
Krylova, AK, Lapine, M, Poulton, CG, McPhedran, RC, Kivshar, YS & Belov, PA 2013, 'Tailoring lattice parameters for broadband artificial diamagnetism', 2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Talence, France, pp. 34-36.View/Download from: Publisher's site
We report a strategy to achieve the values of the effective magnetic permeability close to zero by using anisotropic metamaterial made of dense arrays of conductive loops. We present an extensive parametric analysis of the role of lattice parameters and symmetry, and also of the geometry of the loops. The magnitudes of the real part of the permeability reach 0.05 and are observed in a very broad frequency span, accompanied with negligible dissipation. Importantly, our analysis is applicable in a wide range of absolute sizes, being appropriate up to the THz range. Finally, we assess the dielectric properties of the optimal diamagnetic meta-materials, providing a complete picture of its interaction with the electromagnetic waves. © 2013 IEEE.
Lapine, M 2013, 'Mechanical nonlinearities in electromagnetic metamaterials', 2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Talence, France, pp. 352-354.View/Download from: Publisher's site
We review our recent achievements in the development of metamaterials with mechanical nonlinearity. The novel nonlinearity types are achieved by enabling new degrees of freedom in metamaterial design, which allow a dynamic changes in the geometry of 'meta-atoms' or in the lattice structure. We present the outcomes of magnetoelastic, conformational, rotational and optical nonlinear feedback, and predict unusual phenomena to be observed in such metamaterials. © 2013 IEEE.
Liu, M, Powell, DA, Shadrivov, IV, Lapine, M & Kivshar, YS 2013, 'Dynamic optical activity and self-oscillation in torsional metamaterials', 2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Talence, France, pp. 359-360.View/Download from: Publisher's site
We study the nonlinear dynamic properties of coupled torsional meta-molecules. We find that this structure may exhibit self-oscillation behaviour, and we analyse two different mechanisms leading to this effect. Contrary to many previously studied optomechanical systems, self-oscillations of torsional meta-molecules can be extremely robust against mechanical damping and they can be manipulated by the polarisation of electromagnetic waves. We also study the dynamic nonlinear optical activity arising in the system and its active control. © 2013 IEEE.
Liu, M, Powell, DA, Shadrivov, IV, Lapine, M & Kivshar, YS 2013, 'Dynamic Optical Activity and Self-oscillation in Torsional Metamaterials', 2013 7TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS 2013), 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Bordeaux, FRANCE, pp. 358-360.
Slobozhanyuk, AP, Belov, PA, Lapine, M, McPhedran, RC, Powell, DA, Shadrivov, IV & Kivshar, YS 2013, 'Novel nonlinear chiral metamaterials', 2013 IEEE Antennas and Propagation Society International Symposium Proceedings, IEEE Antennas-and-Propagation-Society International Symposium (APSURSI), IEEE, Orlando, FL, USA, pp. 488-489.View/Download from: Publisher's site
We report on a novel metamaterial design based on multi-turn spiral resonators which strongly enhance nonlinear coupling between electromagnetic and mechanical response. The robust fabrication procedures allowed to produce a large number of resonators, suitable for assembling large metamaterials arrays. We experimentally demonstrate a remarkable self-tuning of the electromagnetic resonance, achieved via power-dependent mechanical reconfiguration, dominating over thermal effects. The corresponding compression of the spirals provides a nonlinear chiral response. © 2013 IEEE.
Slobozhanyuk, AP, Kapitanova, PV, Filonov, DS, Belov, PA, Shadrivov, IV, Powell, DA, Kivshar, YS & Lapine, M 2013, 'Photosensitive SRR-metamaterials', 2013 IEEE Antennas and Propagation Society International Symposium Proceedings, IEEE Antennas-and-Propagation-Society International Symposium (APSURSI), IEEE, Orlando, FL, USA, pp. 1190-1191.View/Download from: Publisher's site
We report a novel approach to design metamaterials with sign-varying nonlinear response. The metamaterial is build up with split-ring resonators loaded by photodiodes and varactor diodes. A non-monotonic frequency shift of the resonance frequency depending on incident microwave power is demonstrated. We show how the nonlinear response of such metamaterials can be directly controlled by light. © 2013 IEEE.
Slobozhanyuk, AP, Kapitanova, PV, Shadrivov, IV, Filonov, DS, Powell, DA, Belov, PA, Lapine, M & Kivshar, YS 2013, 'Light coupling in microwave metamaterials', 2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013, International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), IEEE, Talence, France, pp. 190-192.View/Download from: Publisher's site
We report our recent achievements in tuning metamaterials with light. We introduce a novel approach to design metamaterials with sign-varying nonlinear response. For this purpose, we use split-ring resonators loaded by photodiodes and varactor diodes. A non-monotonic frequency shift of the resonance frequency depending on incident microwave power is demonstrated. Finally, we show how the nonlinear response of photosensitive metamaterials can be directly controlled by light coupling. © 2013 IEEE.
Slobozhanyuk, AP, Filonov, DS, Lapine, M, Belov, PA, Shadrivov, IV & Kivshar, YS 2012, 'Nonlinear spiral metamaterials', 2012 IEEE Antennas and Propagation Society International Symposium (APSURSI), IEEE Antennas-and-Propagation-Society International Symposium (APSURSI), IEEE, Chicago, IL, USA.View/Download from: Publisher's site
We investigate nonlinear behavior of metamaterial element, where responses of a different nature are intrinsically coupled through its structure. We provide an experimental demonstration of the electromagnetically induced compression of the metamaterials elements, which leads to a remarkable shift of the resonance frequency. We believe that these results are useful for the future development of nonlinear and tunable metamaterials. © 2012 IEEE.
Lapine, M, Shadrivov, IV, Powell, DA & Kivshar, YS 2011, 'Magnetoelastic metamaterials', 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011, Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS), IEEE, Munich, Germany.View/Download from: Publisher's site
We propose and demonstrate experimentally a novel type of nonlinearity in metamaterials, which is induced by mechanical deformation of the structure. The nonlinearity arises from the introduction of an extra degree of freedom in the metamaterial, which allows for elastic displacement of the strongly interacting structural elements (see Fig. 1a). This type of nonlinearity relies on the counterplay between the electromagnetic attraction and the elastic repulsion, and the induced deformation alters the electromagnetic response of the entire structure, leading to the novel nonlinear response of the metamaterial. © 2011 IEEE.
Algarin, JM, Freire, MJ, Lapine, M & Marques, R 2010, 'Ab Initio Experimental Analysis of Realistic Resonant Ring Metamaterial Lenses', 2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, 2010 IEEE International Symposium Antennas and Propagation/CNC-USNC/URSI Radio Science Meeting, IEEE, Toronto, CANADA.
Lapine, M, Powell, D, Gorkunov, M, Shadrivov, I & Kivshar, Y 2010, 'Tuning methods for metamaterials', METAMATERIALS V, Conference on Metamaterials V, SPIE-INT SOC OPTICAL ENGINEERING, Brussels, BELGIUM.View/Download from: Publisher's site
Powell, DA, Lapine, M, Gorkunov, M, Shadrivov, IV & Kivshar, YS 2010, 'Analysing and manipulating near-field interaction in metamaterials', Proceedings - 2010 12th International Conference on Electromagnetics in Advanced Applications, ICEAA'10, pp. 87-88.View/Download from: Publisher's site
The complex near-field interactions in metamaterials provide a unique opportunity to tailor their response by modifying the lattice structure. We show that a lateral offset between the layers of rings provides a convenient tuning mechanism, and how the frequency tuning can be easily predicted from the charge distribution of a single ring at resonance. ©2010 IEEE.
Powell, DA, Lapine, M, Gorkunov, M, Shadrivov, IV & Kivshar, YS 2010, 'Metamaterial tuning using near-field interaction', Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010.
We show theoretically and experimentally that by adjusting the lattice configuration we are able to manipulate the near-field interaction of resonant particles, and thus tune the response of a lattice of split-ring resonators. © 2010 Optical Society of America.
Powell, DA, Lapine, M, Gorkunov, M, Shadrivov, IV & Kivshar, YS 2010, 'Metamaterial Tuning using Near-Field Interaction', 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS), Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS), IEEE, San Jose, CA.
Lapine, M, Nefedov, IS, Saily, J & Tretyakov, SA 2006, 'Artificial lines with exotic dispersion for phase shifters and delay lines', 2006 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-4, 36th European Microwave Conference, IEEE, Manchester, ENGLAND, pp. 1823-+.
Lapine, M, Nefedov, IS, Säily, J & Tretyakov, SA 2006, 'Artificial lines with exotic dispersion for phase shifters and delay lines', Proceedings of the 36th European Microwave Conference, EuMC 2006, pp. 427-430.View/Download from: Publisher's site
We discuss various possibilities to design phase shifters with reduced frequency dispersion using combined sections of forward-wave and backward-wave transmission lines. It is shown that inclusion of backward-wave sections into a single transmission line always increases the total dispersion. On the other hand, we show that dispersion can be reduced by means of lines with positive anomalous dispersion and provide an example of such line. Furthermore, we report the theory and design of a novel phase shifter, based on parallel combined backward-forward transmission lines. The phase shifts, produced by this device, are characterized with negligible frequency dependence in a wide frequency range. We show that for an ideal performance, phase deviation can be less than 1° within a 20% bandwidth while excellent impedance matching is retained. We support these theoretical estimates by microwave circuit simulations and direct measurements, showing that the novel phase shifter can be easily implemented with simple electronic components. © 2006 EuMA.
Mynttinen, T, Lapine, M, Säily, J, Nefedov, IS & Tretyakov, SA 2006, 'Microwave devices with enhanced phase-compensation principle', European Space Agency, (Special Publication) ESA SP.
We report an advanced phase compensation principle, which employs combined backward-forward transmission lines having similar frequency dispersion. Various applications of this principle to the design of microwave devices allow for an exceptionally low dispersion in a wide frequency range while keeping the structure very compact and simple compared to conventional solutions. To illustrate the idea, we present the performance of (i) phase shifters, (ii) power dividers and (iii) baluns (complete antenna feeders) built on the reported principle. We support the theoretical estimates by microwave circuit simulations and direct measurements, showing that the novel devices can be easily implemented with simple electronic components.