Enhanced terahertz emission from strain-induced InGaAs/InAlAs superlattices

DS Ponomarev, A Gorodetsky… - Journal of Applied …, 2019 - pubs.aip.org
We propose, fabricate, and evaluate strain-induced InGaAs/InAlAs superlattice (SL), which
can efficiently radiate broadband terahertz (THz) waves. By means of optical pump-probe …

Efficient optical-to-terahertz conversion in large-area InGaAs photo-Dember emitters with increased indium content

IE Ilyakov, BV Shishkin, VL Malevich, DS Ponomarev… - Optics Letters, 2021 - opg.optica.org
In this Letter, optical-to-terahertz (THz) conversion of 800 nm femtosecond laser pulses in
large-area bias-free InGaAs emitters based on photo-Dember (PD) and lateral photo …

[HTML][HTML] Probing photocarrier dynamics in a Bi2Te3–Te eutectic p–n junction with a laser terahertz emission microscope

F Murakami, K Serita, I Kawayama, H Murakami… - APL Materials, 2023 - pubs.aip.org
Bismuth telluride (Bi 2 Te 3)-based heterostructures have attracted considerable attention
owing to their interesting anisotropic properties and expected higher thermoelectric …

Terahertz Emission Spectroscopy and Microscopy on Ultrawide Bandgap Semiconductor β-Ga2O3

H Jiang, C Gong, T Nishimura, H Murakami… - Photonics, 2020 - mdpi.com
Although gallium oxide Ga2O3 is attracting much attention as a next-generation ultrawide
bandgap semiconductor for various applications, it needs further optical characterization to …

[HTML][HTML] Terahertz emission from gradient InGaAs surfaces

JL Regalado-De-La-Rosa, A Belio-Manzano… - Applied Physics …, 2021 - pubs.aip.org
We present an experimental study of the terahertz emission from In x Ga 1− x As epitaxial
layers that were grown while varying the alloy fraction x. We observe the terahertz emission …

Effect of epitaxial stresses on the time dynamics of Photoexcited charge carriers in InGaAs− based Superlattices

A Buryakov, D Khusyainov, E Mishina… - MRS …, 2019 - cambridge.org
We report on the time-resolved measurements of photocarrier dynamics in InGaAs/InAlAs
superlattices with epitaxial stresses in a wide range of optical pump fluences. We …

Temperature dynamics of the electronic structure in dilute Bi-Sn alloys

AS Fedotov, VG Shepelevich, IA Svito, VA Sivakov - Physical Review B, 2018 - APS
We study the changes of Bi electronic structure near T and L points of the Brillouin zone
caused by do** with Sn (concentrations≤ 0.08 at.%). Hall coefficient and …

Optical-to-terahertz switches: state of the art and new opportunities for multispectral imaging

DS Ponomarev, AE Yachmenev, DV Lavrukhin… - Uspekhi Fizicheskikh …, 2024 - ufn.ru
Compact and cost-effective spectrometers and imaging systems in the terahertz (THz)
frequency range based on optical-THz photoconductive converters of ultrashort laser pulses …

Large terahertz birefringence in nanocomposite films made from magnetorheological fluid

Y Chen, G Zhu, F Huang, X Ju, J Wang… - … on Plasma Science, 2024 - ieeexplore.ieee.org
In this work, magnetic nanocomposite films were prepared using magnetorheological fluids
(MRFs) and were characterized by time-domain terahertz spectroscopy. Applying magnetic …

Intense THz emission in high quality MBE-grown GaAs film with a thin n-doped buffer

EAP Prieto, SAB Vizcara, LP Lopez Jr… - Optical Materials …, 2018 - opg.optica.org
Intense terahertz (THz) emission in high quality GaAs film upon ultrafast excitation is
demonstrated. Results showed that high quality GaAs grown by molecular beam epitaxy …