DPSS Laser에 의한 As₄₀Ge₁₀Se₁₅S₃₅, Ag/As₄₀Ge₁₀Se₁₅S₃₅와 As₄₀Ge₁₀Se₁₅S₃₅/Ag/As₄₀/Ge₁₀Se₁₅S = Holographic Data Grating Formation of As₄₀Ge₁₀Se₁₅S₃₅ Single Layer, Ag/As₄₀Ge₁₀Se₁₅S₃₅ Double Layer and As₄₀Ge₁₀Se₁₅S₃₅/Ag

다국어 초록 (Multilingual Abstract)

We investigated the diffraction grating efficiency by the Diode Pumped Solid State(DPSS 532 nm) laser beam wavelength to improve the diffraction efficiency on $As_{40}Ge_{10}Se_{15}S_{35},\;Ag/As_{40}Ge_{10}Se_{15}S_{35}$ and $As_{40}Ge_{10}Se_{15}S_{35}/Ag/As_{40}Ge_{10}Se_{15}S_{35}$ thin film. Diffraction efficiency was obtained from DPSS laser, used (P:P)polarized laser beam on each thin films. As a result, for the laser beam intensity in $0.24mW/cm^2$, single $As_{40}Ge_{10}Se_{15}S_{35}$ thin film shows the highest value of 0.161% diffraction efficiency at 300 s and for laser beam intensity in $2.4mW/cm^2$, it was recorded with the fastest speed of 50 s(0.013%), which the diffraction grating forming speed is faster than that of $0.24mW/cm^2$ beam. $Ag/As_{40}Ge_{10}Se_{15}S_{35}$ double layer and $As_{40}Ge_{10}Se_{15}S_{35}/Ag/As_{40}Ge_{10}Se_{15}S_{35}$ multi-layered thin film also show the faster grating forming speed at $2.4mW/cm^2$ and higher value of diffraction efficiency at $0.24mW/cm^2$.