標題: Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy
作者: Tzeng, Yu-Yi
Zhuo, Zong-Yan
Lee, Ming-Yin
Liao, Chien-Sheng
Wu, Pei-Chun
Huang, Chin-Jie
Chan, Ming-Che
Liu, Tzu-Ming
Lin, Yen-Yin
Chu, Shi-Wei
影像與生醫光電研究所
Institute of Imaging and Biomedical Photonics
公開日期: 6-六月-2011
摘要: Periodically poled crystal (PPC) is a key component for nonlinear optical applications. Its poling quality relies largely on successful domain inversion and the alignment of spontaneous polarization (SP) vectors in each domain. Here we report the unexpected observation of bulk second harmonic generation (SHG) in PPC when excitation propagating along its optical axis. Based on its tensorial nature, SHG is highly sensitive to the orientation of SP, and therefore the misalignment of SP in each domain of PPC can be revealed noninvasively by SHG microscopy. This nonlinear imaging modality provides optical sectioning capability with 3D sub-micrometer resolution, so it will be useful for in situ investigation of poling quality in PPC. (C) 2011 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.19.011106
http://hdl.handle.net/11536/22736
ISSN: 1094-4087
DOI: 10.1364/OE.19.011106
期刊: OPTICS EXPRESS
Volume: 19
Issue: 12
起始頁: 11106
結束頁: 11113
顯示於類別:期刊論文


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  1. 000292865500010.pdf