Holographic gratings in DR1-doped sol–gel silica and ORMOSILs thin films
作者： I.G. Marino , D. Bersani , P.P. Lottici
DOI: 10.1016/S0925-3467(00)00043-4
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摘要: Abstract Holographic diffraction gratings have been obtained in Disperse Red 1 (DR1)-doped silica and ORganically MOdified SILanes thin films (ORMOSILs), produced by tetraethylorthosilicate (TEOS) 3-(triethoxysilyl)propyl isocyanate (ICPTEOS) as precursors for the sol–gel process. For DR1 + TEOS film, grating is associated to an irreversible bleaching of dye may be detected a Raman micro-spectroscopy mapping. based on ICPTEOS, transient phase created photoinduced birefringence. Two characteristic relaxation times birefringence measured.
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