Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy

Yu Yi Tzeng; Zong Yan Zhuo; Ming Yin Lee; Chien Sheng Liao; Pei Chun Wu; Chin Jie Huang; Ming-Che Chan; Tzu Ming Liu; Yen Yin Lin; Shi Wei Chu

doi:10.1364/OE.19.011106

Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy

Yu Yi Tzeng^*, Zong Yan Zhuo, Ming Yin Lee, Chien Sheng Liao, Pei Chun Wu, Chin Jie Huang, Ming-Che Chan, Tzu Ming Liu, Yen Yin Lin, Shi Wei Chu

^*Corresponding author for this work

Institute of Imaging and Biomedical Photonics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	11106-11113
Number of pages	8
Journal	Optics Express
Volume	19
Issue number	12
DOIs	https://doi.org/10.1364/OE.19.011106
State	Published - 6 Jun 2011

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title = "Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy",

abstract = "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.",

author = "Tzeng, {Yu Yi} and Zhuo, {Zong Yan} and Lee, {Ming Yin} and Liao, {Chien Sheng} and Wu, {Pei Chun} and Huang, {Chin Jie} and Ming-Che Chan and Liu, {Tzu Ming} and Lin, {Yen Yin} and Chu, {Shi Wei}",

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T1 - Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy

AU - Tzeng, Yu Yi

AU - Zhuo, Zong Yan

AU - Lee, Ming Yin

AU - Liao, Chien Sheng

AU - Wu, Pei Chun

AU - Huang, Chin Jie

AU - Chan, Ming-Che

AU - Liu, Tzu Ming

AU - Lin, Yen Yin

AU - Chu, Shi Wei

PY - 2011/6/6

Y1 - 2011/6/6

N2 - 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.

AB - 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.

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M3 - Article

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VL - 19

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JO - Optics Express

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Observation of spontaneous polarization misalignments in periodically poled crystals using second-harmonic generation microscopy

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