Topological materials for functional optoelectronic devices

H Chorsi, B Cheng, B Zhao, J Toudert… - Advanced Functional …, 2022 - Wiley Online Library
The recent realization of topology as a mathematical concept in condensed matter systems
has shattered Landau's widely accepted classification of phases by spontaneous symmetry …

Emerging probing perspective of two-dimensional materials physics: terahertz emission spectroscopy

Y Wu, Y Wang, D Bao, X Deng, S Zhang… - Light: Science & …, 2024 - nature.com
Terahertz (THz) emission spectroscopy (TES) has emerged as a highly effective and
versatile technique for investigating the photoelectric properties of diverse materials and …

1.4‐mJ high energy terahertz radiation from lithium niobates

B Zhang, Z Ma, J Ma, X Wu, C Ouyang… - Laser & Photonics …, 2021 - Wiley Online Library
Free‐space super‐strong terahertz (THz) electromagnetic fields offer multifaceted
capabilities for reaching extreme nonlinear THz optics. However, the lack of powerful solid …

High-harmonic generation in Weyl semimetal β-WP2 crystals

YY Lv, J Xu, S Han, C Zhang, Y Han, J Zhou… - Nature …, 2021 - nature.com
As a quantum material, Weyl semimetal has a series of electronic-band-structure features,
including Weyl points with left and right chirality and corresponding Berry curvature, which …

Heterogeneous transfer‐learning‐enabled diverse metasurface design

J Zhang, C Qian, Z Fan, J Chen, E Li… - Advanced Optical …, 2022 - Wiley Online Library
With the rapid growth in intelligent metasurfaces in the recent years, deep learning has
attracted attention to transform the ways in which metasurfaces are simulated and designed …

High-harmonic spectroscopy of light-driven nonlinear anisotropic anomalous Hall effect in a Weyl semimetal

A Bharti, MS Mrudul, G Dixit - Physical Review B, 2022 - APS
Weyl semimetals are promising quantum materials that offer unique topological properties.
Lately, it has been shown that laser-driven electron dynamics have characteristic signatures …

Terahertz polarization conversion from optical dichroism in a topological Dirac semimetal

H Meng, L Wang, CH Lee, YS Ang - Applied Physics Letters, 2022 - pubs.aip.org
Topological Dirac semimetals (TDSMs), such as Cd 3 As 2 and Na 3 Bi, exhibit strong
optical dichroism with contrasting dielectric permittivity along different crystal axes. However …

Narrowband, Angle-Tunable, Helicity-Dependent Terahertz Emission from Nanowires of the Topological Dirac Semimetal Cd3As2

JL Boland, DA Damry, CQ Xia, P Schönherr… - ACS …, 2023 - ACS Publications
All-optical control of terahertz pulses is essential for the development of optoelectronic
devices for next-generation quantum technologies. Despite substantial research in THz …

Semiconductor Bloch-equations formalism: Derivation and application to high-harmonic generation from Dirac fermions

J Wilhelm, P Grössing, A Seith, J Crewse, M Nitsch… - Physical Review B, 2021 - APS
We rederive the semiconductor Bloch equations emphasizing the close link to the Berry
connection. Our rigorous derivation reveals the existence of two further contributions to the …

Switchable triple plasmon-induced transparency in graphene sandwich metamaterial structures

J Li, J Weng, J Li, S Chen, Z Guo, P Xu… - Journal of Physics D …, 2022 - iopscience.iop.org
In this research, a metamaterial structure composed of graphene sandwich structure is put
forward to achieve triple plasmon-induced transparency. This phenomenon is generated by …