Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range

Despite the growing interest in nonlinear devices and components for light by light control in the terahertz range, there is a shortage of such materials and media used for these purposes. Here, we present the calculated values of low-inertia nonlinear refractive index coefficient for electro-optica...

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Published in:Photonics
Main Authors: Maria Zhukova, Maksim Melnik, Irina Vorontsova, Anton Tcypkin, Sergei Kozlov
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Subjects:
Online Access:https://www.mdpi.com/2304-6732/7/4/98
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author Maria Zhukova
Maksim Melnik
Irina Vorontsova
Anton Tcypkin
Sergei Kozlov
author_facet Maria Zhukova
Maksim Melnik
Irina Vorontsova
Anton Tcypkin
Sergei Kozlov
author_sort Maria Zhukova
collection DOAJ
container_title Photonics
description Despite the growing interest in nonlinear devices and components for light by light control in the terahertz range, there is a shortage of such materials and media used for these purposes. Here, we present the calculated values of low-inertia nonlinear refractive index coefficient for electro-optical crystals used in THz time-domain spectroscopy systems such as ZnSe, ZnTe, CdTe, GaP, and LiNbO<sub>3</sub>. The medium parameters affecting the cubic nonlinearity of the vibrational nature increase in the range of 0.5–1 THz have been determined. Comparison of theoretical calculations with known experimental results confirm the theoretical model as well as our analysis of media parameter influence on the cubic nonlinearity. In terms of applications, results obtained open up new perspectives for studying various materials in the THz frequency range.
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spelling doaj-art-88810c03b1c340be8a6d1e00a78960a42025-08-19T22:29:41ZengMDPI AGPhotonics2304-67322020-10-01749810.3390/photonics7040098Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz RangeMaria Zhukova0Maksim Melnik1Irina Vorontsova2Anton Tcypkin3Sergei Kozlov4Laboratory of Femtosecond Optics and Femtotechnologies, ITMO University, 49 Kronverksky Pr., 197101 St. Petersburg, RussiaLaboratory of Femtosecond Optics and Femtotechnologies, ITMO University, 49 Kronverksky Pr., 197101 St. Petersburg, RussiaLaboratory of Femtosecond Optics and Femtotechnologies, ITMO University, 49 Kronverksky Pr., 197101 St. Petersburg, RussiaLaboratory of Femtosecond Optics and Femtotechnologies, ITMO University, 49 Kronverksky Pr., 197101 St. Petersburg, RussiaLaboratory of Femtosecond Optics and Femtotechnologies, ITMO University, 49 Kronverksky Pr., 197101 St. Petersburg, RussiaDespite the growing interest in nonlinear devices and components for light by light control in the terahertz range, there is a shortage of such materials and media used for these purposes. Here, we present the calculated values of low-inertia nonlinear refractive index coefficient for electro-optical crystals used in THz time-domain spectroscopy systems such as ZnSe, ZnTe, CdTe, GaP, and LiNbO<sub>3</sub>. The medium parameters affecting the cubic nonlinearity of the vibrational nature increase in the range of 0.5–1 THz have been determined. Comparison of theoretical calculations with known experimental results confirm the theoretical model as well as our analysis of media parameter influence on the cubic nonlinearity. In terms of applications, results obtained open up new perspectives for studying various materials in the THz frequency range.https://www.mdpi.com/2304-6732/7/4/98terahertz nonlinearitykerr nonlinearityelectro-optical crystalhigh field terahertz radiation
spellingShingle Maria Zhukova
Maksim Melnik
Irina Vorontsova
Anton Tcypkin
Sergei Kozlov
Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
terahertz nonlinearity
kerr nonlinearity
electro-optical crystal
high field terahertz radiation
title Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
title_full Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
title_fullStr Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
title_full_unstemmed Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
title_short Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
title_sort estimations of low inertia cubic nonlinearity featured by electro optical crystals in the thz range
topic terahertz nonlinearity
kerr nonlinearity
electro-optical crystal
high field terahertz radiation
url https://www.mdpi.com/2304-6732/7/4/98
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AT irinavorontsova estimationsoflowinertiacubicnonlinearityfeaturedbyelectroopticalcrystalsinthethzrange
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