Nonlinear refractive index of solids in mid-infrared

被引：21
|
作者：
Patwardhan, Gauri N. [1 ,2 ]
Ginsberg, Jared S. [1 ]
Chen, Cecilia Y. [3 ]
Jadidi, M. Mehdi [1 ]
Gaeta, Alexander L. [1 ,3 ]
机构：
[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
[2] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA
[3] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA
来源：
OPTICS LETTERS | 2021年 / 46卷 / 08期
基金：
美国国家科学基金会;
关键词：
COEFFICIENT; ABSORPTION; DISPERSION; PULSES; AIR;
D O I：
10.1364/OL.421469
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We measure the third-order nonlinear optical response of various dielectrics and semiconductors using the spectrally resolved two-beam coupling method at 2.3 mu m, 3.5 mu m, 4.5 mu m, and 8.3 mu m. These materials include fused silica, sapphire, calcium fluoride, magnesium fluoride, zinc sulphide, and zinc selenide. We compare our results with previous literature results and theoretically expected values using two-band model theory. The dispersion of the nonlinear refractive index n(2) over this wavelength range is found to be negligible. (C) 2021 Optical Society of America
引用
收藏
页码：1824 / 1827
页数：4
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