Measurement of the dispersion of air and of refractive index anomalies by wavelength-dependent nonlinear interferometry

被引：5
|
作者：
Macovez, Roberto [1 ]
Mariano, Marina [1 ]
Di Finizio, Sergio [1 ]
Martorell, Jordi [1 ,2 ]
机构：
[1] ICFO Inst Ciencies Foton, Barcelona 08860, Spain
[2] Univ Politecn Cataluna, Dept Fis & Engn Nucl, Terrassa 08222, Spain
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 16期
关键词：
UPDATED EDLEN EQUATION; 2ND-HARMONIC GENERATION; PHASE MEASUREMENTS; INTERFERENCE; TEMPERATURE; ACCURACY; FORMULAS;
D O I：
10.1364/OE.17.013881
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We carry out wavelength-dependent second harmonic interference experiments using thin films of an organic dye as nonlinear optical sources. While the measured difference of refractive index between the fundamental and second harmonic wavelengths follows the theoretical expectation for air in a wide spectral region, anomalous dispersion is observed when the second harmonic light lies in the absorption band of the dye. The sensitivity of the technique to small refractive index variations may prove useful for sensing applications as well as for testing models of light dispersion in weakly dispersing and absorbing media. (C) 2009 Optical Society of America
引用
收藏
页码：13881 / 13888
页数：8
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