Non-invasive characterization of the domain boundary and structure properties of periodically poled ferroelectrics

被引：14

作者：

Pei, Shan-Chuang ^{[1
]}

Ho, Tuan-Shu ^{[1
]}

Tsai, Chien-Chung ^{[1
]}

Chen, Ting-Hao ^{[1
]}

Ho, Yi ^{[3
]}

Huang, Pi-Ling ^{[1
]}

Kung, A. H. ^{[2
,3
]}

Huang, Sheng-Lung ^{[1
,4
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 106, Taiwan

[2] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan

[3] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan

[4] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 08期

关键词：

OPTICAL COHERENCE TOMOGRAPHY; INTERNAL FIELDS; CRYSTAL-FIBER; LINBO3; GENERATION; PLANAR; INDEX; WALL;

D O I：

10.1364/OE.19.007153

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Shaping the ferroelectric domains as waveguide, grating, lens, and prism are key to the successful penetration of periodically-poled ferroelectrics on various wavelength conversion applications. The complicated structures are, however, difficult to be fully characterized, especially the unexpected index contrast at the anti-parallel domain boundaries are typical in the order of 10(-4) or less. An ultrahigh resolution optical coherence tomography was employed to fully characterize the domain boundary and structure properties of a periodically-poled lithium niobate (PPLN) waveguide with an axial resolution of 0.68 mu m, an transversal resolution of 3.2 mu m, and an index contrast sensitivity of 4x10(-7). The anti-parallel domain uniformity can clearly be seen non-invasively. Dispersion of the ferroelectric material was also obtained from 500 to 750 nm. (C) 2011 Optical Society of America

引用

页码：7153 / 7160

页数：8

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