Measurement of the thermal contribution to the nonlinear refractive index of air at 1064 nm

被引：9
|
作者：
Bentley, SJ [1 ]
Boyd, RW
Butler, WE
Melissinos, AC
机构：
[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA
[2] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
来源：
OPTICS LETTERS | 2000年 / 25卷 / 16期
关键词：
D O I：
10.1364/OL.25.001192
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The thermal contribution to the nonlinear refractive index of air at 1.064 mu m was measured with a high-finesse Fabry-Perot cavity and a 500-mW cw laser beam. At room temperature and pressure, the nonlinear refractive-index coefficient of air was found to be n(2)((th)) = (-1.9 +/- 0.2) x 10(-14) cm(2)/W for a beam waist radius of 0.23 mm and was found to be independent of the relative humidity. The thermal nonlinearities of N-2, O-2, and CO2 were also measured, and it was found that the dominant contribution to air is its O-2 content. (C) 2000 Optical Society of America. OCIS codes: 190.0190, 120.2230.
引用
收藏
页码：1192 / 1194
页数：3
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