Diffraction-grating-type phase converters for conversion of Hermite-Laguerre-Gaussian mode into Gaussian mode

被引：13
|
作者：
Syouji, Atsushi [1 ]
Kurihara, Kazuyoshi [2 ]
Otomo, Akira [3 ]
Saito, Shingo [3 ]
机构：
[1] Tohoku Univ, Res Inst Elect Commun, Sendai, Miyagi 9808577, Japan
[2] Univ Fukui, Fac Educ & Reg Studies, Dept Phys, Fukui 9108507, Japan
[3] Natl Inst Informat & Commun Technol, Kobe, Hyogo 6512492, Japan
来源：
APPLIED OPTICS | 2010年 / 49卷 / 09期
关键词：
ORBITAL ANGULAR-MOMENTUM; COMPUTER-GENERATED HOLOGRAMS; LIQUID-CRYSTAL DISPLAY; OPTICAL VORTICES; LIGHT-BEAMS;
D O I：
10.1364/AO.49.001513
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Diffraction gratings that can be used to convert the Hermite-Laguerre-Gaussian (HLG) mode into the Gaussian mode were obtained; these modes are space modes of light beams. The HLG mode is intermediate between the Hermite-Gaussian and the Laguerre-Gaussian modes. Generally, gratings produced from interfering two beams as holograms contain information of not only the phase modulation factor but also the amplitude modulation factor. Thus, they cannot be expected to provide high conversion efficiency. To produce high-efficiency gratings, the interference equation is divided into two factors. The gratings produced by considering only the phase factors act as phase converters. (C) 2010 Optical Society of America
引用
收藏
页码：1513 / 1517
页数：5
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