Growth and photorefractive properties of doped Pb₅Ge₃O₁₁ crystals and of (Pb₁₋ₓBaₓ)₅Ge₃O₁₁ solid solutions
Publication date
1998-08
Document type
Conference paper
Author
Editor
Ye, Peixian
Shimura, Tsutomu
Neurgaonkar, Ratnakar R.
Organisational unit
Universität Osnabrück
Scopus ID
Conference
SPIE Photonics China '98
Series or journal
Proceedings of SPIE - The International Society for Optical Engineering
Periodical volume
3554
Book title
Photorefractive Materials: Phenomena and Related Applications II
Part of the university bibliography
Nein
Abstract
Ferroelectric lead germanate (Pb₅Ge₃O₁₁) crystals posess relatively large electrooptic coefficients and exhibit light induced conductivity. So far, only little is known about the photorefractive properties of these crystals. We present results on the growth of nominally pure and doped 531 crystals, and of 531 solid solutions. Basic parameters, such as dark and photo conductivity, are investigated in detail employing conventional and holographic techniques. Furthermore photorefractive parameters, like the sign of the dominant charge carriers involved in the charge transport and effective charge densities, are presented and discussed, also with respect to different thermal treatments after growth, which influence the determined parameters.
Version
Not applicable (or unknown)
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