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

被引：4

作者：

Kadan, Viktor ^{[1
]}

Pavlova, Svitlana ^{[1
]}

Pavlov, Ihor ^{[1
,2
]}

Rezaei, Hossein ^{[2
]}

Ilday, Omer ^{[2
,3
,4
,5
]}

Blonskyi, Ivan ^{[1
]}

机构：

[1] NAS Ukraine, Inst Phys, Prospect Nauky 46, UA-03680 Kiev, Ukraine

[2] Bilkent Univ, Dept Phys, Ankara, Turkey

[3] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

[4] Bilkent Univ, UNAM, Natl Nanotechnol Res Ctr, TR-06800 Ankara, Turkey

[5] Bilkent Univ, Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2018年 / 124卷 / 08期

关键词：

ENHANCED 3RD-HARMONIC GENERATION; WAVE-GUIDES; MEDIA; SURFACE; LIGHT;

D O I：

10.1007/s00339-018-1986-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：8

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