KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
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Fabrication of Electrically Switchable Bragg Gratings of The Transmission Mode From Holographic Polymer Dispersed Liquid Crystals

  • Kim, Kyung-Jin (Department of Polymer Science & Eng., Pusan Natinal University) ;
  • Kim, Byung-Kyu (Department of Polymer Science & Eng., Pusan Natinal University) ;
  • Kang, Young-Soo (Department of Chemistry, Pukyong National University) ;
  • Jang, Ju-Seog (Optical Systems Laboratory, Division of Electronics, Computers & Telecommunications, Pukyong National University)
  • Published : 2001.09.01
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Abstract

Holographic transmission gratings were performed by an Ar-laser( ${\lambda}$=514nm) intensity, the ratio fo LC contents to the surfactant. The addition of the surfactant to the LC and pre-polymer systems causes the droplet to maintain the ideal size at the high fraction(over 40wt%) of the LC contents that induce the films to be fabricated with high diffraction efficiency than that of no surfactant series. The image of these films was examined using a charge coupled device (CCD). We also studied the angular selectivity plots which support the important role in the multiplexer channel (MUX). Eventually, we showed the reconstructive optical image recorded in this transmission mode of HPDLCs.

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