Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Mehrany, Khashayar"'
In this paper, we present the design guidelines for a tunable optical isolator in an SOI-based ring resonator with two small time-modulated regions. By considering a physical model, the proper geometrical and modulation parameters are designed, based
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A89490
https://tud.qucosa.de/api/qucosa%3A89490/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A89490/attachment/ATT-0/
Akademický článek
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Autor:
Hemmatyar, Omid, Abbassi, Mohammad Ali, Rahmani, Babak, Memarian, Mohammad, Mehrany, Khashayar
We introduce a new and simple approach to acquire wide-band/angle blazing operation in one-dimensional metallic gratings supported by equivalent circuit analysis. The gratings that are investigated here are single-groove gratings that support two pro
Externí odkaz:
http://arxiv.org/abs/1910.03091
In this paper, it is shown that non-reciprocity can be observed in time-varying media without employing spatio-temporal modulated permittivities. We show that by using only two one dimensional Fabry-Perot slabs with time-periodic permittivities havin
Externí odkaz:
http://arxiv.org/abs/1908.05367
Akademický článek
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Publikováno v:
Phys. Rev. A 98, 013806 (2018)
In this paper, we investigate the impact of the electromagnetic scattering caused by other objects in nonfree space on the time averaged force exerted upon a Rayleigh particle, which is conventionally referred to as the backaction effect. We show tha
Externí odkaz:
http://arxiv.org/abs/1808.05383
The influence of the diffraction limit on the field of view of three-dimensional integral imaging (InI) systems is estimated by calculating the resolution of the InI system along arbitrarily tilted directions. The deteriorating effects of diffraction
Externí odkaz:
http://arxiv.org/abs/1711.01033
Publikováno v:
J. Opt. Soc. Am. B 35(7), 1563-1569 (2018)
In this paper we investigate cooling of a levitated nanosphere in a system of coupled cavities in the resolved sideband regime. Thanks to the presence of an extra resonance in the coupled cavity cooling system, the coupling strength can be maximized
Externí odkaz:
http://arxiv.org/abs/1707.05823
Autor:
Jazayeri, Amir M., Mehrany, Khashayar
We propose a dielectric structure which focuses the laser light well beyond the diffraction limit and thus considerably enhances the exerted optical trapping force upon dielectric nanoparticles. Although the structure supports a Fabry-Perot resonance
Externí odkaz:
http://arxiv.org/abs/1701.08539
Autor:
Rahmani, Babak, Mehrany, Khashayar
A periodic arrangement of one-dimensional slits carved in perfect electric conductor is investigated and an equivalent model based on the effective medium theory is derived. The proposed model is no longer fully homogeneous and features periodic surf
Externí odkaz:
http://arxiv.org/abs/1612.04152