Refractiveindex. info database of optical constants

MN Polyanskiy - Scientific Data, 2024‏ - nature.com
We introduce the refractiveindex. info database, a comprehensive open-source repository
containing optical constants for a wide array of materials, and describe in detail the …

Phase retrieval in terahertz time-domain measurements: a “how to” tutorial

PU Jepsen - Journal of Infrared, Millimeter, and Terahertz Waves, 2019‏ - Springer
Terahertz time-domain spectroscopy (THz-TDS) is in many ways a well-established, proven,
and versatile spectroscopic technique that is frequently and routinely used in many …

Coordinated multi-band angle insensitive selection absorber based on graphene metamaterials

Z Bao, J Wang, ZD Hu, A Balmakou, S Khakhomov… - Optics …, 2019‏ - opg.optica.org
In this paper, we propose a tunable, multi-band, selective absorber composed of multiple
layers. Each layer consisted of SiO_2/graphene/SiC, and a layer of silver was used as the …

Broadly tunable ultrafast pump-probe system operating at multi-kHz repetition rate

A Grupp, A Budweg, MP Fischer, J Allerbeck… - Journal of …, 2017‏ - iopscience.iop.org
Femtosecond systems based on ytterbium as active medium are ideal for driving ultrafast
optical parametric amplifiers in a broad frequency range. The excellent stability of the source …

[HTML][HTML] Design of tunable dual-band terahertz perfect absorber base on graphene

F Liu, M He, Z Dong, Y Wang, B Ni - Results in Physics, 2022‏ - Elsevier
In this paper, a novel tunable dual-band graphene-based perfect absorber which features a
three-layer structure consisting of a monolayer graphene sheet and a metallic mirror …

High-energy and ultra-wideband tunable terahertz source with DAST crystal via difference frequency generation

Y He, Y Wang, D Xu, M Nie, C Yan, L Tang, J Shi… - Applied Physics B, 2018‏ - Springer
We have demonstrated a high-energy and broadly tunable monochromatic terahertz (THz)
source based on difference frequency generation (DFG) in DAST crystal. A high-energy dual …

Mechanisms of THz radiation in laser-plasma interactions

AA Choobini, SS Ghaffari-Oskooei… - arxiv preprint arxiv …, 2024‏ - arxiv.org
The exploration of Terahertz (THz) waves has captivated researchers across diverse
scientific disciplines such as physics, spectroscopy, chemistry, biology, and engineering …

Investigation of the electro-optic effect in high-Q 4H-SiC microresonators

R Wang, J Li, L Cai, Q Li - Optics Letters, 2023‏ - opg.optica.org
Silicon carbide (SiC) recently emerged as a promising photonic and quantum material
owing to its unique material properties. In this work, we carried out an exploratory …

Terahertz time-domain spectroscopy of zone-folded acoustic phonons in 4H and 6H silicon carbide

AT Tarekegne, B Zhou, K Kaltenecker, K Iwaszczuk… - Optics …, 2019‏ - opg.optica.org
We investigate the dielectric properties of the 4H and 6H polytypes of silicon carbide in the
0.1-19 THz range, below the fundamental transverse-optical phonons. Folding of the …

Combined effects of polarization and secondary ablation on precision machining of microgrooves by laser-induced microjet-assisted ablation

Y Guo, P Qiu, S Xu - Optics Express, 2022‏ - opg.optica.org
In this study, we propose a polarization-modulated laser-induced microjet-assisted ablation
method for machining microgrooves with controllable cross-sections. A novel mathematical …