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142 results on '"Zhi, Ya’nan"'

7. Quantitative measurement of domain inversion in RuO2:LiNbO3 crystal by digital holographic interferometry.

Author

Qu, Weijuan, Liu, De’an, Zhi, Ya’nan, Luan, Zhu, Liu, Liren, Zhou, Yu, Lu, Wei, and Wang, Chunhua

Subjects
SEMICONDUCTOR wafers, RUTHENIUM compounds, LITHIUM niobate, HOLOGRAPHIC interferometry, MICROELECTRONICS
Abstract

We quantitatively study the domain inversion in a RuO2:LiNbO3 crystal wafer by the digital holographic interferometry. The crystal wafer is placed into one arm of a Mach-Zehnder-type interferometer to record a series of holograms. Making use of the angular spectrum backward propagation algorithm, we reconstruct the optical wave field in the crystal plane. The extracted phase difference from the reconstructed optical wave field is a well linear function of the applied external voltage. We deduce that the linear electro-optic coefficient of the detected RuO2:LiNbO3 crystal sample is 9.1×10-12 m/V. An unexpected phase contrast at the antiparallel domain wall is observed and the influence of the applied external voltage on it is studied in detail. Also the built-in internal field is quantitatively measured as 0.72 kV/mm. [ABSTRACT FROM AUTHOR]

Published
2006
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35. Analysis and Simulation of Space-Time Speckle Effect Based on Synthetic Aperture Imaging Ladar

Author

孙建锋 Sun Jianfeng, 刘立人 Liu Liren, 马小平 Ma Xiaoping, 孙志伟 Sun Zhiwei, 职亚楠 Zhi Ya′nan, 周煜 Zhou Yu, and 许倩 Xu Qian

Subjects
Speckle pattern, Optics, Lidar, business.industry, Computer science, Space time, Synthetic aperture imaging, Speckle noise, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2013

45. Demonstration of a Laboratory Fresnel Telescope Synthetic Aperture Imaging Ladar

Author

吴亚鹏 Wu Yapeng, 周煜 Zhou Yu, 刘立人 Liu Liren, 职亚楠 Zhi Ya′nan, 闫爱民 Yan Aimin, 孙建锋 Sun Jianfeng, and 戴恩文 Dai Enwen

Subjects
Telescope, Optics, Lidar, business.industry, law, Computer science, Synthetic aperture imaging, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Remote sensing
Published
2012

46. Simulations of Conjugate Dammann Grating Based on Coherent Beam Combination of Two-Dimensional Solid State Laser Array

Author

刘立人 Liu Liren, 吕笑宇 Lü Xiaoyu, 戴恩文 Dai Enwen, 李兵 Li Bing, 闫爱民 Yan Aimin, 孙建锋 Sun Jianfeng, and 职亚楠 Zhi Ya′nan

Subjects
Materials science, Optics, Solid-state laser, business.industry, Grating, business, Atomic and Molecular Physics, and Optics, Beam (structure), Electronic, Optical and Magnetic Materials, Conjugate
Published
2012

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