کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1664536 | 1518013 | 2015 | 5 صفحه PDF | دانلود رایگان |
• Multiplex images were well recorded using simultaneous angular method.
• The periodic structures of the LC and polymer regions were well prepared.
• The angular selectivity was variable nevertheless fabrication by three beams.
• The images were successfully reconstructed in gratings of same spot.
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.
Journal: Thin Solid Films - Volume 596, 1 December 2015, Pages 264–268