[HTML][HTML] Meta-optics for spatial optical analog computing

S Abdollahramezani, O Hemmatyar, A Adibi - Nanophotonics, 2020 - degruyter.com
Rapidly growing demands for high-performance computing, powerful data processing, and
big data necessitate the advent of novel optical devices to perform demanding computing …

Tunable terahertz metamaterial absorber based on electricity and light modulation modes

J Wang, T Lang, Z Hong, T Shen… - Optical Materials Express, 2020 - opg.optica.org
In this paper, a metamaterial absorber that achieved absorption tuning by electricity and light
control has been proposed in the terahertz (THz) regime. The THz absorber exhibits an …

Advanced phase-change materials for enhanced meta-displays

O Hemmatyar, S Abdollahramezani… - arXiv preprint arXiv …, 2021 - arxiv.org
Structural colors generated due to light scattering from static all-dielectric metasurfaces have
successfully enabled high-resolution, high-saturation and wide-gamut color printing …

Ultrafast tunable integrated Faraday isolator based on optical pumping in a graphene–InSb–graphene structure

AH Kazemi, A Mokhtari, M Zamani - Applied Optics, 2020 - opg.optica.org
We have designed a new class of single-stage Faraday isolators that employs two sheets of
graphene. Using nonreciprocal optical materials such as InSb boosts plasmonic coupling …

Design and simulation of a dynamically tunable 1× 2 power splitter using MZI configuration in the telecom regime

K Arik, M Akbari, A Khavasi - Optics Continuum, 2023 - opg.optica.org
We propose an ultra-broadband, ultra-compact and a dynamically tunable 1\times2 power
splitter on a silicon on Insulator (SOI) platform with a 220 nm thick silicon light-guiding layer …

Snell-like and Fresnel-like formulas of the dual-phase-gradient metasurface

J Hu, J Xie, S Tian, H Guo, S Zhuang - Optics Letters, 2020 - opg.optica.org
By patterning the metasurface of two phase gradients that are both space-orthogonal and
polarization-orthogonal, we derived the three-dimensional (3D) Snell-like formula and the …

Beam steering of a terahertz semi bow tie antenna using parasitic graphene ribbons

R Basiri, M Aghazade-Tehrani, E Zareian-Jahromi - Plasmonics, 2020 - Springer
In this paper, a reconfigurable beam-scanning planar antenna is proposed in terahertz
frequencies. The presented structure consists of a semi bow tie antenna surrounded by …

High operative polarization converter using metasurface consisted of dual reciprocal L-shaped graphene array

E Shokati, N Granpayeh - Journal of Nanophotonics, 2020 - spiedigitallibrary.org
A single layer dual L-shaped graphene metasurface is presented to achieve a high
operative and tunable polarization converter in the mid-infrared regime. The proposed …

Fano resonant all-dielectric metasurfaces for polarization-sensitive structural coloration

O Hemmatyar, Z Lu, T Brown… - 2020 Conference on …, 2020 - ieeexplore.ieee.org
Fano Resonant All-Dielectric Metasurfaces for Polarization-Sensitive Structural Coloration
Page 1 SF2R.6.pdf CLEO 2020 © OSA 2020 Fano Resonant All-dielectric Metasurfaces for …

BER evaluation in a multi-channel graphene-silicon photonic crystal hybrid interconnect: a study of fast-and slow-light effects

J You, Z Tao, Y Luo, J Yang, J Zhang, X Zheng… - Optics …, 2020 - opg.optica.org
A comprehensive theoretical investigation on the bit-error ratio (BER) performance of multi-
channel photonic interconnects operating in pulsed regimes is presented. Specifically, the …