Applied Physics Letters · 1972 · 75 citations · 11 references
Materials SciencePhotonicsOptical MaterialsEngineeringOptical PropertiesLight IrradiationOptical GlassApplied PhysicsLaser ApplicationsLight Diffraction EfficiencyRefractive-index ChangeGlass MaterialGlass PhotonicsOptical SystemsThin FilmsOptical ComponentsOptoelectronicsLaser-induced Refractive-index Change
Effect of light irradiation on evaporated chalcogenide glass films of an As–S–Ge system has been studied. In order to make quantitative measurements of refractive-index change resulting from light irradiation, light diffraction efficiency from the phase grating produced in the films with the technique of holographic storage has been measured. The maximum refractive-index change of 0.056 has been obtained in an As2S3 film. This value is two orders of magnitude higher than that of Fe-doped LiNbO3 single crystals. Light irradiation onto the films is considered to have two competing effects, one being thermal and the other purely optical.
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HOLOGRAPHIC STORAGE IN LITHIUM NIOBATE
F. S. Chen, J. T. LaMacchia, David B. Fraser · Applied Physics Letters · 1968 · 466 citations