Theoretical studies on nonvolatile holographic recording for LiNbO3:Cu:Ce crystals | Zendy

Yan Shen | Zendy; Guo-Qing Zhang | Zendy; Wenbin Yu | Zendy; Guo Zhi-zhong | Zendy; Yequan Zhao | Zendy

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Theoretical studies on nonvolatile holographic recording for LiNbO3:Cu:Ce crystals

Author(s) -

Yan Shen,

Guo-Qing Zhang,

Wenbin Yu,

Guo Zhi-zhong,

Yequan Zhao

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.184205

Subject(s) - quantum tunnelling , electron holography , holography , materials science , electron , charge (physics) , space charge , center (category theory) , penning trap , optoelectronics , optics , physics , chemistry , quantum mechanics , crystallography

The steady-state nonvolatile two-step, two-color holographic recording performance is studied theoretically for LiNbO3:Cu:Ce based on the two-center model, with taking into account the direct electron transfer between the deep-trap center Cu+/Cu2+ and the shallow-trap center Ce3+/Ce4+ due to the tunneling effect. The results show that the total space-charge field is determined by the space-charge field on the deep-trap center, and the direct electron exchange between the Cu+/Cu2+ and the Ce3+/Ce4+ levels through the tunneling effect dominates the charge-transfer process in the two-step, two-color holographic recording. Therefore, the material parameters related to this direct tunneling process play a key role in the two-step, two-color holography performance.

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