20 citations · 58 across the 9 of their papers we have counts for
10 papers
Wide-Band/Angle Blazed Dual Mode Metallic Groove Gratings
Omid Hemmatyar, Mohammad Ali Abbassi, Babak Rahmani +2
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…
Non-reciprocity using quadrature-phase time-varying slab resonators
Mahdi Chegnizadeh, Mohammad Memarian, Khashayar Mehrany
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…
Inclusion of the backaction term in the total optical force exerted upon Rayleigh particles in nonresonant structures
Mohammad Ali Abbassi, Khashayar Mehrany
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, whi…
Diffraction Influence on the Field of View and Resolution of Three-Dimensional Integral Imaging
Zhila Esna Ashari, Zahra Kavehvash, Khashayar Mehrany
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 a…
Employing coupled cavities to increase the cooling rate of a levitated nanosphere in the resolved sideband regime
Mohammad Ali Abbassi, Khashayar Mehrany
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…
All-dielectric Structure for Trapping Nanoparticles via Light Funneling and Nanofocusing
Amir M. Jazayeri, Khashayar Mehrany
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…
Modeling of Periodic Array of Cut-through Slits with Periodic Surface Conductivity at the Interfaces of an Anisotropic Medium
Babak Rahmani, Khashayar Mehrany
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 pr…
Achievability of Quantum Regime in Optomechanics of Electromagnetically Levitated Nanoparticles: Inclusion of Gradient Force Fluctuations
Amir M. Jazayeri, Khashayar Mehrany
Counterintuitively, experiments show that an electromagnetically levitated particle escapes from its trap when the ambient pressure is reduced below a certain level even if the par…
Critical study and discrimination of different formulations of electromagnetic force density and consequent stress tensors inside matter
Amir M. Jazayeri, Khashayar Mehrany
By examination of the exerted electromagnetic (EM) force on boundary of an object in a few examples, we look into the compatibility of the stress tensors corresponding to different…
Photonic band-structure and optical S-matrix analyses of the proposed superconducting nanostructures
Ali Sobhani Khakestar, Alireza Kokabi, Khashayar Mehrany +1
Special optical structures composed of superconducting nanostructure based on the elemental type-II and layered high-Tc superconductors are proposed. The photonic band structure an…