Improved properties of stoichiometric lithium niobate for holographic data storage material

Kenji Kitamura; Yasunori Furukawa; Satoru Tanaka; Takashi Yamaji; Hideki Hatano

doi:10.1117/12.310574

18 June 1998 Improved properties of stoichiometric lithium niobate for holographic data storage material

Kenji Kitamura, Yasunori Furukawa, Satoru Tanaka, Takashi Yamaji, Hideki Hatano

Proceedings Volume 3291, Diffractive and Holographic Device Technologies and Applications V; (1998) https://doi.org/10.1117/12.310574
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

We show that stoichiometric LiNbO₃ crystal containing nonstoichiometric defects much less than congruent LiNbO₃ exhibit some advantageous properties for the holographic data storage (HDS) applications. This was confirmed by the two-beam coupling experiment and digital hologram test. In order to interpret the high performance of stoichiometric LN, we compared some related parameters such as linear electro-optic constants, photoconductivity and photovoltaic constants between stoichiometric and congruent LN crystals. In all measurements, the stoichiometric crystals grown by the novel double crucible CZ method were found to be more excellent as HDS medium. This superiority was obvious at the geometry using the extraordinary polarization.

Citation Download Citation

Kenji Kitamura, Yasunori Furukawa, Satoru Tanaka, Takashi Yamaji, and Hideki Hatano "Improved properties of stoichiometric lithium niobate for holographic data storage material", Proc. SPIE 3291, Diffractive and Holographic Device Technologies and Applications V, (18 June 1998); https://doi.org/10.1117/12.310574

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