Observation of spectral asymmetry in cw-pumped type-II spontaneous parametric down-conversion

被引：9
|
作者：
Zhao, Zhi [1 ]
Meyer, Kent A. [1 ]
Whitten, William B. [1 ]
Shaw, Robert W. [1 ]
Bennink, Ryan S. [1 ]
Grice, Warren P. [1 ]
机构：
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
PHYSICAL REVIEW A | 2008年 / 77卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.77.063828
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on a spectral asymmetry in cw-pumped type-II spontaneous parametric down-conversion. We observe that when the pump beam is focused, the spectra of ordinary and extraordinary down-converted photons broaden unequally. Theoretical analysis indicates that this asymmetry can be attributed to the difference in the angular dispersion (walk-off) of the two kinds of photons, coupled with the well-known correlation between wavelength and emission direction.
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页数：4
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