Thermally induced birefringence in Faraday devices made from terbium gallium garnet-polycrystalline ceramics

被引：60
作者：
Kagan, MA
Khazanov, EA [1 ]
机构：
[1] Penn State Univ, Dept Phys, Davey Lab, University Pk, PA 16802 USA
[2] Inst Appl Phys, Nizhnii Novgorod 603950, Russia
来源：
APPLIED OPTICS | 2004年 / 43卷 / 32期
关键词：
D O I：
10.1364/AO.43.006030
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have developed a model that describes thermally induced birefringence in polycrystalline ceramics that are exposed to a magnetic field. Conditions under which traditional compensation techniques (for glass and single crystals) can be effective for ceramics have been found. It is shown that a ceramic is almost equivalent to a [111]-oriented crystal if the ratio of the rod length to the grain size is similar to300 or more. In particular, residual depolarization (after the compensation techniques are applied) is inversely proportional to this ratio, which is an important consequence of the random nature of thermally induced birefringence in ceramics. (C) 2004 Optical Society of America.
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收藏
页码：6030 / 6039
页数：10
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