Depth-resolved analysis of ferroelectric domain structures in Ti:PPLN waveguides by nonlinear confocal laser scanning microscopy

被引：22

作者：

Berth, Gerhard ^{[1
]}

Quiring, Viktor ^{[1
]}

Sohler, Wolfgang ^{[1
]}

Zrenner, Artur ^{[1
]}

机构：

[1] Univ Gesamthsch Paderborn, Dept Phys, D-33098 Paderborn, Germany

来源：

FERROELECTRICS | 2007年 / 352卷

关键词：

ferroelectric domain structures; nonlinear microscopy; Ti : LiNbO3 waveguides;

D O I：

10.1080/00150190701358159

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have analyzed the ferroelectric domain structure of periodically poled LiNbO3 by nonlinear confocal laser scanning microscopy. Annealed samples exhibit domain wall width below 300 nm, which more or less corresponds to the diffraction limit. In contrast, domain walls in "as poled" samples appear considerably broader and tentatively structured. It? periodically poled Ti:LiNbO3 waveguide structures we find a pronounced enhancement ofthe nonlinear signalfrom the domain walls, which appears within the Ti-diffused range of the waveguide including the surface region.

引用

页码：326 / 333

页数：8

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