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Effect of the oxidation state of LiNbO3:Fe on the diffraction efficiency of multiple holograms

Burr, Geoffrey W. and Psaltis, Demetri (1996) Effect of the oxidation state of LiNbO3:Fe on the diffraction efficiency of multiple holograms. Optics Letters, 21 (12). pp. 893-895. ISSN 0146-9592.

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We show that the oxidation state of Fe in LiNbO3 has two competing effects on the diffraction efficiency of multiple holograms in 90 degree-geometry holographic storage. For crystals with moderate absorption, the saturation space-charge field is larger after high-temperature reduction treatment. However, reduction also increases absorption, which reduces the overall diffraction efficiency. We develop a theoretical model that predicts achievable diffraction efficiency as a function of oxidation state, doping level, photovoltaic field, crystal length, and region of beam overlap. We compare this model with experimental results for achievable diffraction efficiency and erasure-time constant.

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Additional Information:© 1996 Optical Society of America Received December 8, 1995 This research is supported by Rome Labs and the National Science Foundation Center for Neuromorphic Systems Engineering. We thank Ya-yun Liu for assistance with the high-temperature annealing.
Issue or Number:12
Record Number:CaltechAUTHORS:BURol96
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2911
Deposited By: Archive Administrator
Deposited On:06 May 2006
Last Modified:02 Oct 2019 22:58

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