THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric

Abstract Second Harmonic Generation induced by the electric field of a strong nearly single-cycle terahertz pulse with the peak amplitude of 300 kV/cm is studied in a classical inorganic ferroelectric thin film of (Ba0.8Sr0.2)TiO3. The dependences of the SHG intensity on the polarization of the inco...

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Autores principales:	Kirill A. Grishunin, Nikita A. Ilyin, Natalia E. Sherstyuk, Elena D. Mishina, Alexey Kimel, Vladimir M. Mukhortov, Andrey V. Ovchinnikov, Oleg V. Chefonov, Mikhail B. Agranat
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/484e397374e0417a84fca0546b76a059
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spelling	oai:doaj.org-article:484e397374e0417a84fca0546b76a0592021-12-02T15:05:42ZTHz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric10.1038/s41598-017-00704-92045-2322https://doaj.org/article/484e397374e0417a84fca0546b76a0592017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00704-9https://doaj.org/toc/2045-2322Abstract Second Harmonic Generation induced by the electric field of a strong nearly single-cycle terahertz pulse with the peak amplitude of 300 kV/cm is studied in a classical inorganic ferroelectric thin film of (Ba0.8Sr0.2)TiO3. The dependences of the SHG intensity on the polarization of the incoming light is revealed and interpreted in terms of electric polarization induced in the plane of the film. As the THz pulse pumps the medium in the range of phononic excitations, the induced polarization is explained as a dynamical change of the ferrolectric order parameter. It is estimated that under action of the THz pulse the ferroelectric order parameter acquires an in-plane component up to 6% of the net polarization.Kirill A. GrishuninNikita A. IlyinNatalia E. SherstyukElena D. MishinaAlexey KimelVladimir M. MukhortovAndrey V. OvchinnikovOleg V. ChefonovMikhail B. AgranatNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kirill A. Grishunin Nikita A. Ilyin Natalia E. Sherstyuk Elena D. Mishina Alexey Kimel Vladimir M. Mukhortov Andrey V. Ovchinnikov Oleg V. Chefonov Mikhail B. Agranat THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
description	Abstract Second Harmonic Generation induced by the electric field of a strong nearly single-cycle terahertz pulse with the peak amplitude of 300 kV/cm is studied in a classical inorganic ferroelectric thin film of (Ba0.8Sr0.2)TiO3. The dependences of the SHG intensity on the polarization of the incoming light is revealed and interpreted in terms of electric polarization induced in the plane of the film. As the THz pulse pumps the medium in the range of phononic excitations, the induced polarization is explained as a dynamical change of the ferrolectric order parameter. It is estimated that under action of the THz pulse the ferroelectric order parameter acquires an in-plane component up to 6% of the net polarization.
format	article
author	Kirill A. Grishunin Nikita A. Ilyin Natalia E. Sherstyuk Elena D. Mishina Alexey Kimel Vladimir M. Mukhortov Andrey V. Ovchinnikov Oleg V. Chefonov Mikhail B. Agranat
author_facet	Kirill A. Grishunin Nikita A. Ilyin Natalia E. Sherstyuk Elena D. Mishina Alexey Kimel Vladimir M. Mukhortov Andrey V. Ovchinnikov Oleg V. Chefonov Mikhail B. Agranat
author_sort	Kirill A. Grishunin
title	THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_short	THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_full	THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_fullStr	THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_full_unstemmed	THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_sort	thz electric field-induced second harmonic generation in inorganic ferroelectric
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/484e397374e0417a84fca0546b76a059
work_keys_str_mv	AT kirillagrishunin thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT nikitaailyin thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT nataliaesherstyuk thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT elenadmishina thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT alexeykimel thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT vladimirmmukhortov thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT andreyvovchinnikov thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT olegvchefonov thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric AT mikhailbagranat thzelectricfieldinducedsecondharmonicgenerationininorganicferroelectric
_version_	1718388701220831232

THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric

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