Managing orbital angular momentum in second-harmonic generation

被引：49
|
作者：
Li, Si-Min [1 ,2 ]
Kong, Ling-Jun [1 ,2 ]
Ren, Zhi-Cheng [1 ,2 ]
Li, Yongnan [1 ,2 ]
Tu, Chenghou [1 ,2 ]
Wang, Hui-Tian [1 ,2 ,3 ]
机构：
[1] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China
[2] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
来源：
PHYSICAL REVIEW A | 2013年 / 88卷 / 03期
基金：
中国国家自然科学基金;
关键词：
OPTICAL VORTEX; ORDER; BEAMS;
D O I：
10.1103/PhysRevA.88.035801
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a convenient approach for managing orbital angular momentum (OAM) of second-harmonic photons generated by a quadratic nonlinear interaction under noncolinear type-I phase matching condition. Since the OAMs of two fundamental photons can be flexibly controlled by using computer-generated holograms, we were able to realize arbitrary combination of both OAMs and experimentally confirm the OAM conservation selection rule l(2 omega) = l'(omega) + l"(omega) in general cases. In particular, our approach could be used to generate the second-harmonic photon states with fractional and odd-order OAMs.
引用
收藏
页数：5
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