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.

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页数：5

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