Sensitivity Enhancement of Cubic Nonlinearity Measurement in THz Frequency Range

A Nabilkova, A Ismagilov, M Melnik… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
The study applies for the first time the eclipse Z-scan technique to measure LiNbO crystal's
nonlinear refractive index coefficient in the THz range. This technique is by one order of …

Sensitivity enhancement of third-order nonlinearity measurement in THz frequency range

A Nabilkova, A Ismagilov, M Melnik, M Zhukova… - arxiv preprint arxiv …, 2024 - arxiv.org
In this article for the first time we applied the eclipse Z-scan technique which is by one order
of magnitude more sensitive than the conventional Z-scan technique to measure LiNbO3 …

Assessment of image reconstruction quality in multiplexed terahertz ghost imaging

A Ismagilov, A Lappo-Danilevskaya… - Journal of Optical …, 2023 - opg.optica.org
Subject of study. The index of the structural similarity between the reconstructed and
reference images in multiplexed terahertz ghost imaging as a function of broadband …

The spectrum broadening of a single-cycle terahertz pulse caused by phase self-modulation in a nonlinear medium and the spectrum of radiation generated in its field …

IR Artser, MV Melnik, AN Tsypkin, SA Kozlov - Computer Optics, 2024 - mathnet.ru
When the number of oscillations in an optical pulse decreases, the emission spectrum
generated at triple frequencies and the spectrum of the fundamental pulse, broadened due …

Estimation of image reconstruction quality in multiplex terahertz ghost imaging

AO Ismagilov, AK Lappo-Danilevskaya… - Journal of Optical … - opticjourn.ru
Subject of study. The dependency of structural similarity index between the reconstructed
and the reference images in the case of multiplexed terahertz ghost imaging on the used …

[PDF][PDF] Wave interference under self-phase modulation and triple frequencies generation owing to few-cycle terahertz pulses propagating in a cubic nonlinear medium

I Artser, M Melnik, A Tcypkin, I Gurov, S Kozlov - 2024 - researching.cn
Recently, in the field of nonlinear optics of the terahertz frequency range, numerous unique
features have been discovered, which distinguish it advantageously from nonlinear optics of …

Interference of radiation at fundamental and tripled frequencies with superbroadening of the few-cycle pulse spectrum in nonlinear media

SA Kozlov, IR Artser, MV Melnik… - … Laser Optics (ICLO), 2024 - ieeexplore.ieee.org
In media with cubic nonlinearity, broadening of the optical pulses' spectrum is observed due
to their phase modulation and generation of radiation at triple frequencies. When the …

[HTML][HTML] Перекрытие спектра однопериодного терагерцового импульса, уширяемого в нелинейной среде из-за фазовой самомодуляции, и спектра излучения …

ИР Арцер, МВ Мельник, АН Цыпкин… - Компьютерная …, 2024 - cyberleninka.ru
При уменьшении числа колебаний поля в оптическом импульсе спектр излучения,
генерируемого на утроенных частотах, и спектр основного импульса, уширяемый из-за …

Towards standardless calibration of the quantum efficiency of analog terahertz detectors

GK Kitaeva, PA Prukovskii… - … Conference on Advanced …, 2022 - cyberleninka.ru
We consider a possibility of measuring the quantum efficiency of sensitive elements of
terahertz detectors using quantum-correlated pairs of optical and terahertz photons. Such …

[PDF][PDF] Transmission features of nonlinear Fabry-Perot interferometer with giant Kerr nonlinearity in THz frequency range

SA Kozlov, AA Gendrina, MD Shipov… - … on Advanced Laser …, 2022 - scholar.archive.org
Much attention has been paid to terahertz radiation in recent years. Features of THz
radiationis quite surprising. For instance, relatively recently it was discovered that in the …