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Proceedings Paper

Optical vortex beams generated by a phase-only LC-SLM and double-slit interference analysis
Author(s): Dong Chen; Junli Qi; Weihua Wang; Jinhong Yang; Ping Wang; Qianghua Zhang; Haifei Deng; Hui Zhang; Dewei Sun; Huihui Shan; Xiaomin Ma; Bo Shi
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Paper Abstract

Vortex beams with integral and fractional topological charges are generated by an experimental setup with one phase-only liquid crystal spatial light modulator which efficiently modulates the phase retardation distributions of input beam. The intensity distributions and double-slit interference of vortex beams with integral and fractional topological charges are investigated in detail. Tilt appears in double-slit interference fringes of vortex beams. The fringe tilt amounts in the intermediate region are proportional to the topological charge l of vortex beams. The double-slit interference method can be utilized to determine the topological charge of vortex beams.

Paper Details

Date Published: 31 December 2013
PDF: 8 pages
Proc. SPIE 9042, 2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 90420T (31 December 2013); doi: 10.1117/12.2034770
Show Author Affiliations
Dong Chen, New Star Institute of Applied Technology (China)
Junli Qi, New Star Institute of Applied Technology (China)
Weihua Wang, New Star Institute of Applied Technology (China)
Jinhong Yang, New Star Institute of Applied Technology (China)
Ping Wang, New Star Institute of Applied Technology (China)
Qianghua Zhang, New Star Institute of Applied Technology (China)
Haifei Deng, New Star Institute of Applied Technology (China)
Hui Zhang, New Star Institute of Applied Technology (China)
Dewei Sun, New Star Institute of Applied Technology (China)
Huihui Shan, New Star Institute of Applied Technology (China)
Xiaomin Ma, New Star Institute of Applied Technology (China)
Bo Shi, New Star Institute of Applied Technology (China)


Published in SPIE Proceedings Vol. 9042:
2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaocong Yuan; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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