Poling dynamics of lithium niobate crystals

被引：43

作者：

Wengler, MC ^{[1
]}

Müller, M ^{[1
]}

Soergel, E ^{[1
]}

Buse, K ^{[1
]}

机构：

[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2003年 / 76卷 / 04期

关键词：

D O I：

10.1007/s00340-003-1136-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ferroelectric domain reversal via electric field poling of congruently melting lithium niobate (LiNbO3) crystals is investigated. An electro-optic interferometric observation technique reveals spatial and temporal dynamics of the poling process. Starting from seeds, the domains grow until the entire crystal has a switched polarization. During the switching process the boundaries are preferentially aligned along the crystallographic axes. The coercive field between two sequenced domain inversions is transiently reduced after a poling event, and recovers exponentially with a time constant of about half a minute. No light-induced change of the recovery time constant, neither with green nor with ultraviolet light, is observed. The results are of relevance for domain engineering of LiNbO3 crystals.

引用

页码：393 / 396

页数：4

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