Generation of Perfect Optical Vortices by Using a Transmission Liquid Crystal Spatial Light Modulator

被引:18
作者
Carvajal, Nelson Anaya [1 ]
Acevedo, Cristian H. [1 ]
Moreno, Yezid Torres [1 ]
机构
[1] Univ Ind Santander, Escuela Fis, GOTS, Grp Opt & Tratamiento Senales, Carrera 27 Calle 9,AA 678, Bucaramanga 680002, Colombia
关键词
ORBITAL ANGULAR-MOMENTUM; VORTEX-BEAM; DIFFRACTION; WAVE; MICROPARTICLES; TRANSFORMATION; POLARIZATION; ORIENTATION; LATTICES; SQUARE;
D O I
10.1155/2017/6852019
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have experimentally created perfect optical vortices by the Fourier transformation of holographic masks with combination of axicons and spiral functions, which are displayed on a transmission liquid crystal spatial light modulator. We showed theoretically that the size of the annular vortex in the Fourier plane is independent of the spiral phase topological charge but it is dependent on the axicon. We also studied numerically and experimentally the free space diffraction of a perfect optical vortex after the Fourier back plane and we found that the size of the intensity pattern of a perfect optical vortex depends on the topological charge and the propagation distance.
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页数:10
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