Generation of Broad Spectral Components from Midwave Infrared Ultrashort Pulse Laser Propagation through ZnSe and ZnS

被引：2

作者：

Werner, Kevin ^{[1
]}

Tripepi, Michael ^{[1
]}

Schweinsberg, Aaron ^{[2
]}

Hastings, Michael ^{[3
]}

Vanderhoef, Laura ^{[2
]}

Wolfe, Christopher ^{[2
]}

Ensley, Trenton ^{[4
]}

Wilmer, Brian ^{[5
]}

Kolesik, Miroslav ^{[3
]}

Moloney, Jerome ^{[3
]}

Chowdhury, Enam ^{[1
]}

Valenzuela, Anthony ^{[2
]}

机构：

[1] Ohio State Univ, Dept Phys, 191 W Woodruff Ave, Columbus, OH 43224 USA

[2] US Army Res Lab, Weap & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA

[3] Univ Arizona, Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA

[4] US Army Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA

[5] SURVICE Engn, 4695 Millennium Dr, Belcamp, MD 21017 USA

来源：

NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS AND DEVICES XVIII | 2019年 / 10902卷

关键词：

Ultrashort pulse lasers; high harmonic generation; filamentation; UPPE; OPTICAL NONLINEARITIES; IR; HARMONICS;

D O I：

10.1117/12.2509928

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the nonlinear optical properties of ZnSe and ZnS using ultrashort (pulse duration approximately 200 fs) midwave infrared laser pulses between 3 and 4 mu m. Multiple harmonic generation in both materials was observed, as well as significant spectral modification of the fundamental pulse. Simulations using a nonlinear polarization model enhanced with ionization compared favorably with experimental data. Random quasi phase matching in the materials is the likely generator of the observed harmonics.

引用

页数：11

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