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Conferences > CLEO > 2002 > CTuR > CTuR4
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2002),
  • paper CTuR4

Quasi-nonvolatile One-color Holography In UNbO3:ln,Fe

Guoquan Zhang, Yasuo Tomita, Xinzheng Zhang, and Jingjun Xu

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Abstract

Photorefractive gratings recorded in UNbO3 are usually volatile: the grating buildup rate is equal to the grating erasure rate if the recording intensity is equal to the erasing intensity.1 On the other hand, high asymmetry in the grating buildup and erasure rates is desired in some applications. For example, holographic memory applications require nonvolatility of recorded gratings during readout while they require the recording sensitivity as high as possible.2 Here we report on the near-infrared (one-color) photorefractivity and the observation of high asymmetry in the grating buildup and erasure rates in LiNbO3:In, Fe.

© 2002 Optical Society of America

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