Optical vortex generation by use of vector beam recorded azo-dye-doped liquid-crystal polymer composites

Moritsugu Sakamoto; Tomoyuki Sasaki; Tran Minh Tien; Kohei Noda; Nobuhiro Kawatsuki; Hiroshi Ono

doi:10.1117/12.2249033

16 March 2017 Optical vortex generation by use of vector beam recorded azo-dye-doped liquid-crystal polymer composites

Moritsugu Sakamoto, Tomoyuki Sasaki, Tran Minh Tien, Kohei Noda, Nobuhiro Kawatsuki, Hiroshi Ono

Proceedings Volume 10120, Complex Light and Optical Forces XI; 1012006 (2017) https://doi.org/10.1117/12.2249033
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

In the present presentation, we report the experimentally and theoretically investigated spatial wavefront conversion properties of an optical vortex (OV) generation system including azo-dye doped liquid crystal (ADDLC) polymer composite and vector beam illuminator, focusing on the abilities of flexibility and achromaticity. Threedimensional anisotropic structure was induced by recording vector beam in ADDLC and it can convert a polarized Gaussian beam into polarized OVs whose topological charge is depending on the structure of anisotropy. The photo-induced anisotropic structure can be re-initialized by turning it off and changing the illuminating polarization pattern of vector beam. Numerical simulations and experimental results showed that our anisotropic structure can generate OV with broadband spectrum.

Conference Presentation

Citation Download Citation

Moritsugu Sakamoto, Tomoyuki Sasaki, Tran Minh Tien, Kohei Noda, Nobuhiro Kawatsuki, and Hiroshi Ono "Optical vortex generation by use of vector beam recorded azo-dye-doped liquid-crystal polymer composites", Proc. SPIE 10120, Complex Light and Optical Forces XI, 1012006 (16 March 2017); https://doi.org/10.1117/12.2249033

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