Spatio-temporal dynamics of femtosecond laser pulses at 1550 nm wavelength in crystal silicon

Date

2018-08-01

Author

Kadan, Viktor
Pavlova, Svitlana
Pavlov, Ihor
Rezaei, Hossein
Ilday, Omer
Blonskyi, Ivan

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Spatio-temporal transformation of the femtosecond laser pulses at 1550 nm wavelength in c-Si is observed using the methods of time-resolved microscopy. The temporal dynamics of the pulse manifests itself both in widening of the frequency spectrum and in the change of on-axis time-width. It is shown, that along with Kerr effect, two-photon absorption also contributes to the temporal reshaping of the laser pulse. Despite the fact that absorption length for green light in c-Si is as small as 1 A mu m, generation of visible third harmonics was also observed in c-Si.

Subject Keywords

General Materials Science, General Chemistry

URI

https://hdl.handle.net/11511/57037

Collections

Department of Physics, Article