Spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion

被引：48
|
作者：
Baek, So-Young [1 ]
Kim, Yoon-Ho [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
来源：
PHYSICAL REVIEW A | 2008年 / 77卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.77.043807
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the complete measurement of the spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion pumped by a cw laser in both the collinear and the noncollinear regimes. The measurement includes the single-photon spectra as well as the two-photon joint spectra. Our results reveal interesting yet subtle differences between the collinear and the noncollinear regimes of frequency-degenerate type-I spontaneous parametric down-conversion. The single-photon and two-photon spectral measurements are in good agreement with the numerical simulation taking into account the tuning curve and the experimental geometry.
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页数：7
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