[HTML][HTML] Terahertz sources based on stimulated polariton scattering

AJ Lee, DJ Spence, HM Pask - Progress in Quantum Electronics, 2020 - Elsevier
In this paper we review the field of terahertz (THz) sources which make use of the nonlinear,
stimulated polariton scattering (SPS) process. A historical perspective of the technology is …

Phase-matching in KTP crystal for THz wave generation at room temperature and 81 K

CR Wang, QK Pan, F Chen, G Lanskii… - Infrared Physics & …, 2019 - Elsevier
Optical properties of high-quality flux-grown potassium titanyl phosphate (KTiOPO 4, KTP)
crystals were studied at 81 K in the spectral range of 0.2–2.4 THz by terahertz time-domain …

Optical properties of KTP crystals and their potential for terahertz generation

A Mamrashev, N Nikolaev, V Antsygin, Y Andreev… - Crystals, 2018 - mdpi.com
High nonlinearity, wide transparency range and optical quality allowed potassium titanyl
phosphate (KTiOPO4, KTP) crystals to be used in a wide range of nonlinear applications …

Linear optical properties of ZnGeP2 in the terahertz range

K Zhong, C Liu, M Wang, J Shi, B Kang… - Optical Materials …, 2017 - opg.optica.org
We investigated the optical properties of zinc germanium phosphide (ZnGeP_2 or ZGP)
crystals in a wide terahertz (THz) range from 0.2 THz to 6 THz, and made comparisons …

Detection of nuclear spin isomers of water molecules by terahertz time-domain spectroscopy

AA Mamrashev, LV Maximov… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
Nuclear spin isomers of water molecules, ie, ortho-and para-H2O, are quantum states of one
of the most important molecules. Presently, our understanding of the water isomer …

All-dielectric KTiOPO4 metasurfaces based on multipolar resonances in the terahertz region

J Tian, Y Yang, M Qiu, F Laurell, V Pasiskevicius… - Optics …, 2017 - opg.optica.org
We employ ferroelectrics to study the multipolar scattering in all-dielectric metasurfaces
based on KTiOPO_4 (KTP) micro-disks for efficient manipulation of electromagnetic waves …

Phase matching in RT KTP crystal for down-conversion into the THz range

JG Huang, ZM Huang, NA Nikolaev… - Laser Physics …, 2018 - iopscience.iop.org
Dispersion of refractive index and absorption coefficients in flux-grown high-resistivity
KTiOPO 4 crystals between 0.2–2.5 THz are verified at room temperature by a THz-TDS …

Frequency conversion in KTP crystal and its isomorphs

S Gagarskiy, S Grechin, P Druzhinin, K Kato, D Kochiev… - Crystals, 2018 - mdpi.com
We report the results of an analysis of the functional capabilities of the KTP crystal and its
isomorphs for nonlinear-optical frequency conversion of all types of interactions in the …

Terahertz Optical Properties of KTiOPO4 Crystal in the Temperature Range of (− 192)–150 C

A Rybak, V Antsygin, A Mamrashev, N Nikolaev - Crystals, 2021 - mdpi.com
This paper presents the results of an experimental study of the optical properties of highly
resistive monocrystals of potassium titanyl phosphate (KTiOPO4, KTP) in the frequency …

Absorption coefficient and phase matching angle of KTiOAsO4 at low temperatures in terahertz range for high efficiency terahertz generation

G Li, H Ye, J Huang, H Cui, N Xia, Y Gao… - Infrared Physics & …, 2024 - Elsevier
The temperature dependence of absorption coefficient and phase matching (PM) angle of
Potassium titanyl arsenate (KTiOAsO 4, KTA) with temperatures from 5.8 to 300 K was …