Ultrafast third-order optical nonlinearity in SnS2 layered compound for photonic applications

被引：14
|
作者：
Petris, Adrian [1 ]
Gheorghe, Petronela S. [1 ]
Vlad, Valentin I. [2 ]
Rusu, Emil [3 ]
Ursaki, Veaceslav V. [3 ]
Tiginyanu, Ion M. [3 ,4 ]
机构：
[1] Natl Inst Laser Plasma & Radiat Phys, 409 Atomistilor Str, Bucharest 077125, Romania
[2] Romanian Acad, CASP, 125 Calea Victoriei, Bucharest 010071, Romania
[3] Moldavian Acad Sci, Inst Elect Engn & Nanotechnol, 3-3 Acad Str, Kishinev 2028, Moldova
[4] Tech Univ Moldova, Natl Ctr Mat Study & Testing, 168 Stefan Cel Mare Ave, Kishinev 2004, Moldova
来源：
OPTICAL MATERIALS | 2018年 / 76卷
关键词：
Tin disulfide; Ultrafast optical nonlinearity; Third harmonic generation; Nonlinear refractive index; 2-DIMENSIONAL MATERIALS; SATURABLE ABSORBER; ANODE MATERIAL; MOS2; WS2; PERFORMANCE;
D O I：
10.1016/j.optmat.2017.12.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ultrafast nonlinear optical response of SnS2 layered compound, excited by high-repetition-rate ultrashort (fs) pulses at 1550 nm wavelength, is investigated for the first time by optical third harmonic generation. In this nonlinear process, only the ultrafast nonlinear optical effect of pure electronic origin is involved, in spite of the thermo-optic effect that arises due to the temperature rise induced in the sample by high-repetition-rate laser pulses. From the experimental dependence of the third harmonic intensity on fundamental harmonic intensity, the third-order nonlinear optical susceptibility and the corresponding nonlinear refractive index of SnS2 are determined. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：69 / 74
页数：6
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