Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2006.10a
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- Pages.55-56
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- 2006
Holographic Data Grating Formation of AsGeSeS Single layer, Ag/AsGeSeS double layer And AsGeSeS/Ag/AsGeSeS Muti-layer Thin Films with the DPSS Laser
DPSS Laser에 의한 AsGeSeS,Ag/AsGeSeS 와 AsGeSeS/Ag/AsGeSeS 박막의 홀로그래픽 데이터 격자형성
- Koo, Yong-Woon (Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
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Koo, Sang-Mo
(Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
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Cho, Won-Ju
(Dept. of Electronic Materials Eng. Kwangwoon Univ.) ;
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Chung, Hong-Bay
(Dept. of Electronic Materials Eng. Kwangwoon Univ.)
- Published : 2006.10.27
Abstract
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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