Microphotometric investigations of thick refractive index gratings in photorefractive crystals
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- Rupp, R.A. Appl. Phys. B (1986) 41: 153. doi:10.1007/BF00693917
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Transmission microphotometry is used as a new tool for the investigation of the holographic writing process of thick refractive index gratings. Theoretical results on the origin of the contrast formation are discussed. They are experimentally confirmed by rocking curves of thick refractive index gratings in doped LiNbO3 crystals.