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Your search keyword '"Hu, Xi-kui"' showing total 16 results
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16 results on '"Hu, Xi-kui"'

1. Quantum entanglement based on surface phonon polaritons in condensed matter systems

Author

Ming, Yang, Wu, Zi-jian, Hu, Xi-kui, Xu, Fei, and Lu, Yan-qing

Subjects
Quantum Physics, Condensed Matter - Materials Science
Abstract

Condensed matter systems are potential candidates to realize the integration of quantum information circuits. Surface phonon polariton (SPhP) is a special propagation mode in condensed matter systems. We present an investigation on the entanglement of SPhP modes. The entangled pairs are generated from entangled photons injected to the system. Quantum performances of entangled SPhPs are investigated by using the interaction Hamiltonian and the perturbation theory. The wave mechanics approach is taken to describe the coupling process as a comparison. Finally, the correlation of system is examined. A whole set of descriptions of SPhP entanglement thus are presented., Comment: 16 pages, 4 figures

Published
2012
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5. Complex liquid crystal alignments accomplished by Talbot self-imaging

Author

Hu, Xi-kui, Wei, Bing-yan, Lin, Xiao-wen, Hu, Wei, Zhu, Ge, Chigrinov, Vladimir, Lu, Yan-qing, Hu, Xi-kui, Wei, Bing-yan, Lin, Xiao-wen, Hu, Wei, Zhu, Ge, Chigrinov, Vladimir, and Lu, Yan-qing

Abstract

We introduce Talbot self-imaging into photoalignment technique to record Talbot carpet into an LC cell. Through the design of the setup, different images are presented on a single sample. By taking a simple 1D grating mask as an example, an LC cell with complex alignment structures applicable as Mach-Zehnder interferometer arrays is demonstrated. Further mask design permits feasibility of various structures which are practicable for many applications. This method may facilitate the fabrication of photonic applications such as optical communication, computing and sensing, etc. (C) 2013 Optical Society of America

Published
2013

6. Fast response dual-frequency liquid crystal switch with photo-patterned alignments

Author

Lin, Xiao-Wen, Hu, Wei, Hu, Xi-Kui, Liang, Xiao, Chen, Ye, Cui, Hong-Qing, Zhu, Ge, Li, Jia-Nan, Chigrinov, Vladimir, Lu, Yan-Qing, Lin, Xiao-Wen, Hu, Wei, Hu, Xi-Kui, Liang, Xiao, Chen, Ye, Cui, Hong-Qing, Zhu, Ge, Li, Jia-Nan, Chigrinov, Vladimir, and Lu, Yan-Qing

Abstract

A dual-frequency liquid crystal based optical switch with orthogonally photo-patterned alignments is designed and fabricated. The cell gap is theoretically optimized for high switching performance. The measured extinction ratio of first diffraction order is over 20 dB with a low electric field of 3 V/mu m. The switch On-Off time are measured to be 350 mu s and 600 mu s, respectively, both of which have reached submillisecond scale. Moreover, the switch is polarization independent, which has been predicted theoretically and further proved experimentally. This design is suitable in wide applications requiring fast response and polarizer free properties. (c) 2012 Optical Society of America

Published
2012

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