Growth and properties of a new TB type photorefractive crystal

This paper is focused on the studies on the new composition of tungsten bronze photorefractive KNSBN:Cu crystals. By changing the A-site occupation of the crystals and doping Cu ions in them, their ferroelectric and photorefractive properties were modified. These new crystals have excellent polariza...

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Bibliographic Details
Published inJournal of crystal growth Vol. 128; no. 1-4; pp. 880 - 885
Main Authors Chen, H.C., Sun, D.L., Song, Y.Y., Jiang, Q.Z.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.03.1993
Elsevier
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Growth from melts; zone melting and refining
Materials science
Methods of crystal growth; physics of crystal growth
Physics
Crystal growth
Polarization
Photorefractive effect
Impurity
Barium Potassium Sodium Strontium Metaniobates Mixed
Transition metal Compounds
Doping
Experimental study
Fabrication property relation
Inorganic compound
Ferroelectric materials
Optical properties
Growth from melt
Bronze type compound
Copper
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Summary:This paper is focused on the studies on the new composition of tungsten bronze photorefractive KNSBN:Cu crystals. By changing the A-site occupation of the crystals and doping Cu ions in them, their ferroelectric and photorefractive properties were modified. These new crystals have excellent polarization stabilities and a two-wave coupling gain coefficient as large as 20 cm−1. The photorefractive sensitivity is of the order of 10−3 cm2/J and the cat-SPPC reflectivity can reach 65% with a response time lower than 10 s.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(07)80063-7