Second-harmonic generation of asymmetric Bessel-Gaussian beams carrying orbital angular momentum

被引：21

作者：

Dai, Kunjian ^{[1
]}

Li, Wenzhe ^{[1
]}

Morgan, Kaitlyn S. ^{[1
]}

Li, Yuan ^{[1
]}

Miller, J. Keith ^{[1
]}

Watkins, Richard J. ^{[1
]}

Johnson, Eric G. ^{[1
]}

机构：

[1] Clemson Univ, COMSET, Microphoton Lab, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 02期

关键词：

OPTICAL VORTICES; LIGHT;

D O I：

10.1364/OE.381679

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nonlinear processes of laser beams carrying orbital angular momentum (OAM) offer a means to generate new wavelengths and to manipulate OAM charge numbers. We demonstrate the second-harmonic generation (SHG) of asymmetric Bessel-Gaussian (BG) beams carrying OAM of both integer and fractional charge numbers. Experimental results show a good one-to-one correspondence of the charge numbers and compliance with the OAM conservation law. The SHG conversion process and efficiency with different combined charge numbers are also discussed. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2536 / 2546

页数：11

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