We report a holographically fabricated, optically switchable grating using azo-dye-doped, polymer-dispersed liquid crystals (LCs). Our experiments show that upon photoirradiation, the diffraction of the grating was decreased significantly. We believe that this switching behavior is due to two factors—nematic–isotropic phase transition of LCs and thermal expansion of the grating structure.
© 2009 Optical Society of America
Diffraction and Gratings
Original Manuscript: April 28, 2009
Revised Manuscript: June 4, 2009
Manuscript Accepted: June 14, 2009
Published: July 30, 2009
Yan Jun Liu, Yue Bing Zheng, Jinjie Shi, Hua Huang, Thomas R. Walker, and Tony Jun Huang, "Optically switchable gratings based on azo-dye-doped, polymer-dispersed liquid crystals," Opt. Lett. 34, 2351-2353 (2009)