Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Albooyeh, M."'
Upon using fundamental electromagnetic properties of metasurfaces we build a platform to classify reciprocal bianisotropic metasurfaces from typical experimental measurements and determine isotropic, anisotropic, bi-isotropic (chiral), and bianisotro
Externí odkaz:
http://arxiv.org/abs/2209.09295
Autor:
Asadchy, V., Lamprianidis, A. G., Ptitcyn, G., Albooyeh, M., Rituraj, Karamanos, T., Alaee, R., Tretyakov, S. A., Rockstuhl, C., Fan, S.
Publikováno v:
Phys. Rev. Applied, vol. 18, no. 5, p. 054065, 2022
We provide a theoretical description of light scattering by a spherical particle whose permittivity is modulated in time at twice the frequency of the incident light. Such a particle acts as a finite-sized photonic time crystal and, despite its sub-w
Externí odkaz:
http://arxiv.org/abs/2202.11138
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:
Phys. Rev. B 97, 085412 (2018)
We generalize the concept of parity-time symmetric structures with the goal to create meta-atoms exhibiting extraordinary abilities to overcome the presumed limitations in the scattering of overall lossless particles, such as non-zero forward scatter
Externí odkaz:
http://arxiv.org/abs/1710.09015
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
In this talk we present and discuss a new general approach to the synthesis of metasurfaces for full control of transmitted and reflected fields. The method is based on the use of an equivalent impedance matrix which connects the tangential field com
Externí odkaz:
http://arxiv.org/abs/1603.07186
We present a general methodology for electromagnetic homogenization and characterization of bianisotropic metasurfaces formed by regular or random arrangements of small arbitrary inclusions at the interface of two different isotropic media. These top
Externí odkaz:
http://arxiv.org/abs/1511.02952
Autor:
Albooyeh, M., Simovski, C. R.
In this Letter we theoretically study the possibility of total power absorption of light in a planar grid modelled as an effective sheet with zero optical thickness. The key prerequisite of this effect is the simultaneous presence of both resonant el
Externí odkaz:
http://arxiv.org/abs/1203.2100
In this paper we theoretically study electromagnetic reflection, transmission, and scattering properties of periodic and random arrays of particles which exhibit both electric-mode and magnetic-mode resonances. We compare the properties of regular an
Externí odkaz:
http://arxiv.org/abs/1201.5800