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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 11 — Apr. 10, 2006
  • pp: 2453–2458

Optics InfoBase > Applied Optics > Volume 45 > Issue 11 > Page 2453

Influence of composition on the photorefractive centers in pure LiNbO3 at low light intensity

Wenbo Yan, Yongfa Kong, Lihong Shi, Lei Sun, Hongde Liu, Xiaochun Li, Di Zhao, Jingjun Xu, Shaolin Chen, Ling Zhang, Ziheng Huang, Shiguo Liu, and Guangyin Zhang  »View Author Affiliations


Applied Optics, Vol. 45, Issue 11, pp. 2453-2458 (2006)
http://dx.doi.org/10.1364/AO.45.002453


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Abstract

The influence of composition on the photorefractive effect in pure LiNbO3 crystals at low light intensity was investigated. The experimental results indicate that different defects dominate the photorefractive centers of pure LiNbO3 with various compositions. Bipolarons are considered to be responsible for the enhanced photovoltaic field in reduced near-stoichiometric LiNbO3, and their bulk photovoltaic constant κ is estimated to be ∼ 6.95 × 10 − 32   m 3 / V . Q polarons (composed of two bipolarons) are introduced to explain the photorefractive effect of congruent LiNbO3 at both low and high light intensities.

© 2006 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(160.3730) Materials : Lithium niobate

History
Original Manuscript: August 24, 2005
Revised Manuscript: October 21, 2005
Manuscript Accepted: November 6, 2005

Citation
Wenbo Yan, Yongfa Kong, Lihong Shi, Lei Sun, Hongde Liu, Xiaochun Li, Di Zhao, Jingjun Xu, Shaolin Chen, Ling Zhang, Ziheng Huang, Shiguo Liu, and Guangyin Zhang, "Influence of composition on the photorefractive centers in pure LiNbO3 at low light intensity," Appl. Opt. 45, 2453-2458 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-11-2453

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