대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

DPSS Laser에 의한 AsGeSeS,Ag/AsGeSeS 와 AsGeSeS/Ag/AsGeSeS 박막의 홀로그래픽 데이터 격자형성

Holographic Data Grating Formation of AsGeSeS Single layer, Ag/AsGeSeS double layer And AsGeSeS/Ag/AsGeSeS Muti-layer Thin Films with the DPSS Laser

  • 구용운 (광운대학교 전자재료공학과) ;
  • 구상모 (광운대학교 전자재료공학과) ;
  • 조원주 (광운대학교 전자재료공학과) ;
  • 정홍배 (광운대학교 전자재료공학과)
  • Koo, Yong-Woon (Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
  • Koo, Sang-Mo (Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
  • Cho, Won-Ju (Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
  • Chung, Hong-Bay (Dept. of Electronic Materials Eng. Kwangwoon Univ.)
  • 발행 : 2006.10.27
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초록

We investigated the diffraction grating efficiency by the DPSS laser beam wavelength to improve the diffraction efficiency on AsGeSeS & Ag/ AsGeSeS thin film. Diffraction efficiency was obtained from DPSS(532nm)(P:P)polarized laser beam on AsGeSeS, Ag/ AsGeSeS and AsGeSeS/Ag/AsGeSeS thin films. As a result, for the laser beam intensity, 0.24 mW, single AsGeSeS thin film shows the highest value of 0.161% diffraction efficiency at 300 s and for 2.4 mW, it was recorded with the fastest speed of 50 s, which the diffraction grating forming speed is faster than that of 0.24 mW beam. Ag/ AsGeSeS and AsGeSeS/ Ag/ AsGeSeS multi-layered thin film also show the faster grating forming speed at 2.4 mW and higher value of diffraction efficiency at 0.24 mW.

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