Multiplexing storage using angular variation in a transmission holographic polymer dispersed liquid crystal

作者：Kim Eun Hee; Jung Yeon Gil^*

来源：Thin Solid Films, 2015, 596: 264-268.

DOI：10.1016/j.tsf.2015.07.061

• Angular multiplexing
• HPDLC
• Diffraction efficiency
• Composition
• Reconstructed image

Simultaneous angular multiplexing of transmission gratings in a holographic polymer dispersed liquid crystal (HPDLC) film as a function of resin and film compositions, irradiation intensity, and cell thickness has been studied by exposing the material to three coherent laser beams. It was found that the diffraction efficiency monotonically increases with irradiation intensity and cell gap, whereas a maximum of 43% is obtained at specific compositions of trimethylolpropane triacrylate (TMPTA)/N-vinylpyrrolidone (NVP) = 8/1 and polymer/LC = 65/35. The multiplexed gratings have been captured using SEM imaging and the reconstructed images using a charge-coupled device camera, showing successful reconstructed images of gratings.

• 出版日期2015-12-1