Optical second harmonic generation and its photoinduced dynamics in ferroelectric semiconductor Sn 2 P 2 S 6

K. A. Brekhov; K. A. Grishunin; D. V. Afanas’ev; S. V. Semin; N. E. Sherstyuk; E. D. Mishina; A. V. Kimel

doi:10.1134/S1063783418010080

Optical second harmonic generation and its photoinduced dynamics in ferroelectric semiconductor Sn₂P₂S₆

作者: Brekhov K.A.¹, Grishunin K.A.¹, Afanas’ev D.V.², Semin S.V.¹^,2, Sherstyuk N.E.¹, Mishina E.D.¹, Kimel A.V.¹^,2
隶属关系:
1. Moscow Technological University (MIREA)
2. Institute for Molecules and Materials
期: 卷 60, 编号 1 (2018)
页面: 31-36
栏目: Semiconductors
URL: https://journal-vniispk.ru/1063-7834/article/view/201845
DOI: https://doi.org/10.1134/S1063783418010080
ID: 201845

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By means of optical pump–probe technique, the ultrafast dynamics of nonlinear optical response of the ferroelectric semiconductor Sn₂P₂S₆ crystal excited with a femtosecond laser pulse has been investigated. It has been shown that, under the action of femtosecond pulses, change in optical second harmonic generation occurs in the sample, which can be due to screening of existing electric polarization.