Dynamically tunable polarization-independent terahertz absorber based on bulk Dirac semimetals

M Chen, C Chen, S Deng, H Liu, C Teng, Y Cheng… - Osa …, 2019 - opg.optica.org
In this paper, we propose a tunable and polarization-independent absorber based on a bulk
Dirac semimetal (BDS) metasurface at terahertz frequencies with a high absorption. The …

Microgrooves array on phase-change germanium-antimony-tellurium alloys nanofilm THz detector

Q Song, W Chen, J Yang, M Zhang, F Gao… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
Instead of utilizing commercial detectors and a detection scheme based on 2-D layer
semiconductors or surface plasmon enhancement effect, we have developed a novel …

Role of topological charges in the nonlinear optical response from Weyl semimetals

A Bharti, G Dixit - Physical Review B, 2023 - APS
The successful realization of the topological Weyl semimetals has revolutionized
contemporary physics. In recent years, multi-Weyl semimetals, a class of topological Weyl …

Tunable and enhanced Faraday rotation induced by the epsilon-near-zero response of a Weyl semimetal

J Wu, L Jiang, X Dai, Y Xiang - Physical Review A, 2022 - APS
In this paper, we theoretically study the Faraday (FR) rotation effect excited by a transverse-
magnetic (TM)-polarized wave passing through a bulk Weyl semimetal (WSM). Results show …

[HTML][HTML] Asymmetrical plasmonic absorber and reflector based on tilted Weyl semimetals

SO Abdol, B Abdollahipour - Scientific Reports, 2021 - nature.com
We investigate the surface plasmon polariton dispersion and optical spectra of a thin film of
tilted Weyl semimetal. Tilted Weyl semimetals possess tilted Weyl cones at the Weyl nodes …

Second harmonic generation in Dirac/Weyl semimetals with broken tilt inversion symmetry

Y Gao, B Ge - Optics Express, 2021 - opg.optica.org
We theoretically investigate the second harmonic generation in tilted Dirac/Weyl semimetals
with broken tilt inversion symmetry in the absence of an external magnetic field using …

[HTML][HTML] Optical controlled terahertz modulator based on tungsten disulfide nanosheet

Z Fan, Z Geng, X Lv, Y Su, Y Yang, J Liu, H Chen - Scientific reports, 2017 - nature.com
The terahertz (THz) modulator, which will be applied in next-generation wireless
communication, is a key device in a THz communication system. Current THz modulators …

[HTML][HTML] Signatures of a time-reversal symmetric Weyl semimetal with only four Weyl points

I Belopolski, P Yu, DS Sanchez, Y Ishida… - Nature …, 2017 - nature.com
Through intense research on Weyl semimetals during the past few years, we have come to
appreciate that typical Weyl semimetals host many Weyl points. Nonetheless, the minimum …

Crystal growth and transport properties of Weyl semimetal TaAs

R Sankar, G Peramaiyan, IP Muthuselvam… - Journal of Physics …, 2017 - iopscience.iop.org
We report the single crystal growth and transport properties of a Weyl semimetal TaAs.
Unsaturated large magnetoresistance of about 22 100% at 2 K and 9 T is observed. From …

Gate‐Tunable Photovoltaic Behavior and Polarized Image Sensor Based on All‐2D TaIrTe4/MoS2 Van Der Waals Schottky Diode

L Zhang, X Han, S Zhang, H Wang… - Advanced Electronic …, 2022 - Wiley Online Library
Abstract 2D Weyl semimetal shows potential applications in photodetection, polarization‐
sensitive imaging, and Schottky barrier diodes, due to its unique band structure and …