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Transient enhancement of photorefractive gratings in lead germanate by homogeneous pyroelectric fields

Yue, Xuefeng and Mendricks, S. and Nikolajsen, T. and Hesse, H. and Kip, D. and Krätzig, E. (1999) Transient enhancement of photorefractive gratings in lead germanate by homogeneous pyroelectric fields. Journal of the Optical Society of America B, 16 (3). pp. 389-394. ISSN 0740-3224. http://resolver.caltech.edu/CaltechAUTHORS:YUEjosab99

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Abstract

During holographic recording in pure (Pb5Ge3O11) and doped [(Pb1−xBax)5Ge3O11] lead germanate crystals, the diffraction efficiency is transiently enhanced at the initial stage. The enhancement is studied as a function of writing-beam intensity and of dark delay time between two successive recording processes and with open- or short-circuited crystal surfaces. Homogeneous pyroelectric fields that arise from heating of the crystals by cw illumination are revealed to be the main mechanism for diffraction efficiency enhancement. The combined effect of pyroelectric fields and charge compensation is analyzed and used for the explanation of the observed phenomena.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-3-389PublisherUNSPECIFIED
http://dx.doi.org/10.1364/JOSAB.16.000389DOIUNSPECIFIED
Additional Information:© 1999 Optical Society of America. Received August 11, 1998; revised manuscript received November 2, 1998. Financial support by the Deutsche Forschungsgemeinschaft (SFB 225, A1, A6) and the Friedrich-Ebert-Stiftung are gratefully acknowledged.
Funders:
Funding AgencyGrant Number
Deutsche Forschungsgemeinschaft (DFG)SFB 225, A1, A6
Friedrich-Ebert-StiftungUNSPECIFIED
Record Number:CaltechAUTHORS:YUEjosab99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:YUEjosab99
Official Citation:X. Yue, S. Mendricks, T. Nikolajsen, H. Hesse, D. Kip, and E. Krätzig, "Transient enhancement of photorefractive gratings in lead germanate by homogeneous pyroelectric fields," J. Opt. Soc. Am. B 16, 389-394 (1999) http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-3-389
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12722
Collection:CaltechAUTHORS
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Deposited On:21 Dec 2008 04:31
Last Modified:29 Aug 2014 17:15

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