THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric

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 (Ba(0.8)Sr(0.2))TiO(3). The dependences of the SHG intensity on the polarization of the incomin...

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Autores principales: Grishunin, Kirill A., Ilyin, Nikita A., Sherstyuk, Natalia E., Mishina, Elena D., Kimel, Alexey, Mukhortov, Vladimir M., Ovchinnikov, Andrey V., Chefonov, Oleg V., Agranat, Mikhail B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5429639/
https://www.ncbi.nlm.nih.gov/pubmed/28386081
http://dx.doi.org/10.1038/s41598-017-00704-9
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author Grishunin, Kirill A.
Ilyin, Nikita A.
Sherstyuk, Natalia E.
Mishina, Elena D.
Kimel, Alexey
Mukhortov, Vladimir M.
Ovchinnikov, Andrey V.
Chefonov, Oleg V.
Agranat, Mikhail B.
author_facet Grishunin, Kirill A.
Ilyin, Nikita A.
Sherstyuk, Natalia E.
Mishina, Elena D.
Kimel, Alexey
Mukhortov, Vladimir M.
Ovchinnikov, Andrey V.
Chefonov, Oleg V.
Agranat, Mikhail B.
author_sort Grishunin, Kirill A.
collection PubMed
description 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 (Ba(0.8)Sr(0.2))TiO(3). 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.
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spelling pubmed-54296392017-05-15 THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric Grishunin, Kirill A. Ilyin, Nikita A. Sherstyuk, Natalia E. Mishina, Elena D. Kimel, Alexey Mukhortov, Vladimir M. Ovchinnikov, Andrey V. Chefonov, Oleg V. Agranat, Mikhail B. Sci Rep Article 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 (Ba(0.8)Sr(0.2))TiO(3). 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. Nature Publishing Group UK 2017-04-06 /pmc/articles/PMC5429639/ /pubmed/28386081 http://dx.doi.org/10.1038/s41598-017-00704-9 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Grishunin, Kirill A.
Ilyin, Nikita A.
Sherstyuk, Natalia E.
Mishina, Elena D.
Kimel, Alexey
Mukhortov, Vladimir M.
Ovchinnikov, Andrey V.
Chefonov, Oleg V.
Agranat, Mikhail B.
THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title 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_short THz Electric Field-Induced Second Harmonic Generation in Inorganic Ferroelectric
title_sort thz electric field-induced second harmonic generation in inorganic ferroelectric
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5429639/
https://www.ncbi.nlm.nih.gov/pubmed/28386081
http://dx.doi.org/10.1038/s41598-017-00704-9
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