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Laser induced memory bits in photorefractive LiNbO3 and LiTaO3

Juodkazis, Saulius; Mizeikis, Vyngantas; Sudzius, Markas; Misawa, Hiroaki; Kitamura, Kenji; Takekawa, Shunji; Gamaly, Eugene G; Krolikowski, Wieslaw; Rode, Andrei V


We study experimentally the formation of refractive index voxels (volume elements) in photorefractive LiNbO3 and LiTaO3 crystals illuminated with high irradiance femtosecond laser pulses. We used 150 fs pulses at 800 nm wavelength (energy 6-50 nJ) tightly focused inside the crystals in a single shot regime. This resulted in a formation of a micrometer size region of elevated refractive index, which may be used as memory bits in information storage/retrieval application. The maximum refractive...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Applied Physics A: Materials Science and Processing
DOI: 10.1007/s00339-008-4641-9


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