Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Asadchy, V. S."'
The realization of photonic time crystals is a major opportunity but also comes with significant challenges. The most pressing one, potentially, is the requirement for a substantial modulation strength in the material properties to create a noticeabl
Externí odkaz:
http://arxiv.org/abs/2310.02786
An invisible cavity is an open resonant device that confines a localized field without producing any scattering outside of the device volume. By exploiting the scatter-less property of such device, it is possible to nest two invisible cavities, as th
Externí odkaz:
http://arxiv.org/abs/2209.03681
Autor:
Ptitcyn, G., Lamprianidis, A. G., Karamanos, T., Asadchy, V. S., Alaee, R., Müller, M., Albooyeh, M., Mirmoosa, M. S., Fan, S., Tretyakov, S. A., Rockstuhl, C.
Exploring the interaction of light with time-varying media is an intellectual challenge that, in addition to fundamental aspects, provides a pathway to multiple promising applications. Time modulation constitutes here a fundamental handle to control
Externí odkaz:
http://arxiv.org/abs/2110.07195
Publikováno v:
2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)
Resonators composed of two mirrors, such as Fabry-Perot cavities, provide a simple but effective approach to achieve wave transmission with high finesse. Further increase of the quality factor requires reflectors with higher conductivity or multi-mir
Externí odkaz:
http://arxiv.org/abs/1903.06483
Publikováno v:
Phys. Rev. Applied 11, 014024 (2019)
Accumulation of energy by reactive elements is limited by the amplitude of time-harmonic external sources. In the steady-state regime, all incident power is fully reflected back to the source, and the stored energy does not increase in time, although
Externí odkaz:
http://arxiv.org/abs/1802.07719
We investigate multi-channel reflectors, such as a three-channel power splitter and a five-channel isolating mirror. These metasurface reflectors are able to control reflections from and into several directions while possessing a flat surface. We des
Externí odkaz:
http://arxiv.org/abs/1801.09384
Autor:
Cuesta, F. S., Asadchy, V. S., Sayanskiy, A. D., Lenets, V. A., Mirmoosa, M. S., Ma, X., Glybovski, S. B., Tretyakov, S. A.
Publikováno v:
IEEE Trans. Antennas Propag. 68 (2020) 1689-1703
We propose and analyse metasurface-bound invisible (non-scattering) partially open cavities where the inside field distribution can be engineered. It is demonstrated both theoretically and experimentally that the cavities exhibit unidirectional invis
Externí odkaz:
http://arxiv.org/abs/1802.00070
Akademický článek
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Autor:
Asadchy, V. S., Diaz-Rubio, A., Tcvetkova, S. N., Kwon, D. -H., Elsakka, A., Albooyeh, M., Tretyakov, S. A.
Publikováno v:
Phys. Rev. X 7, 031046 (2017)
Recent advances in engineered gradient metasurfaces have enabled unprecedented opportunities for light manipulation using optically thin sheets, such as anomalous refraction, reflection, or focusing of an incident beam. Here we introduce a concept of
Externí odkaz:
http://arxiv.org/abs/1610.04780
Publikováno v:
Phys. Rev. B 94, 075142 (2016)
Non-uniform metasurfaces (electrically thin composite layers) can be used for shaping refracted and reflected electromagnetic waves. However, known design approaches based on the generalized refraction and reflection laws do not allow realization of
Externí odkaz:
http://arxiv.org/abs/1605.02044