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

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

By means of optical pump–probe technique, the ultrafast dynamics of nonlinear optical response of the ferroelectric semiconductor Sn 2 P 2 S 6 crystal excited with a femtosecond laser pulse has been investigated. It has been shown that, under the action of femtosecond pulses, change in optical secon...

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Veröffentlicht in:Physics of the solid state 2018, Vol.60 (1), p.31-36
Hauptverfasser: Brekhov, K. A., Grishunin, K. A., Afanas’ev, D. V., Semin, S. V., Sherstyuk, N. E., Mishina, E. D., Kimel, A. V.
Format: Artikel
Sprache:eng
Schlagworte:
Electric polarization
Femtosecond pulses
Ferroelectric materials
Ferroelectricity
Nonlinear response
Physics
Physics and Astronomy
Second harmonic generation
Semiconductors
Solid State Physics
X-rays
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Zusammenfassung:By means of optical pump–probe technique, the ultrafast dynamics of nonlinear optical response of the ferroelectric semiconductor Sn 2 P 2 S 6 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.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783418010080