Abstract
Polarization modulation was achieved by means of a new type of grating recorded with two 532 nm beams at varying polarization angles in an azobenzene side-chain liquid-crystalline polymer film through light regulation instead of voltage control. In contrast to conventional polarization holographic gratings, the polarization state of the first-order diffracted beams of the recorded gratings depended strongly on angles between polarization directions of two recording beams, while the polarization state of the second-order diffraction remained unchanged. With the polarization angle changing from 0 to 90 deg, the first-order diffraction efficiency increased from 5.15% to 10.53%. Diffraction properties of the recorded gratings were attributed to the combination of polarization holographic gratings and amplitude gratings based on the calculation of Jones matrices and polarization holographic theory.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Xu Pan, Changshun Wang, Chuanyu Wang, and Xiaoqiang Zhang
Appl. Opt. 47(1) 93-98 (2008)
Pengfei Zeng, Changshun Wang, Fuli Zhao, Peng Cai, and Mu Qin
Appl. Opt. 54(1) 53-59 (2015)
Ziyao Lyu, Changshun Wang, Hongjing Li, Yujia Pan, and Renjie Xia
Opt. Mater. Express 8(8) 2050-2059 (2018)