Azimuthally and radially polarized light with a nematic SLM

被引：73
|
作者：
Bashkansky, Mark [1 ]
Park, Doewon [2 ]
Fatemi, Fredrik K. [1 ]
机构：
[1] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA
[2] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 01期
关键词：
CYLINDRICAL-VECTOR BEAMS; ELECTROMAGNETIC DIFFRACTION; SINGLE MOLECULES; OPTICAL SYSTEMS; IMAGE FIELD; LASER-BEAMS; GENERATION; GRATINGS; FOCUS; TRAP;
D O I：
10.1364/OE.18.000212
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a technique for generating azimuthally and radially polarized beams using a nematic liquid crystal spatial light modulator and a pi phase step. The technique is similar in concept to prior techniques that interfere TEM01 and TEM10 laser modes, but the presented technique removes the requirement of interferometric stability. We calculate an overlap integral of >0.96 with >70% efficiency from an input Gaussian mode. The technique can easily switch between beams with azimuthal and radial polarization. 2009 Optical Society of America
引用
收藏
页码：212 / 217
页数：6
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