Dr. Xinxian Bao Profile

Dr. Xinxian Bao

at Jiangsu HTT Science and Technology Co Ltd

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Author

Publications (12)

Proceedings Article | 19 May 2000 Paper

Optical nonlinearity and holographic storage in azo side-chain liquid crystal polymer

Xinxian Bao, Yanqing Tian, William Tong

Proceedings Volume 3939, (2000) https://doi.org/10.1117/12.386363

KEYWORDS: Polymers, Diffraction gratings, Polarization, Holography, Liquid crystals, Diffraction, Refractive index, Liquids, Nonlinear optics, Crystals

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Proceedings Article | 17 April 2000 Paper

Nanometer-scale fabrication and data storage on charge transfer complex TEA(TCNQ)2 single crystal

Xinxian Bao, Haifeng Chen, Zhongfan Liu

Proceedings Volume 3937, (2000) https://doi.org/10.1117/12.382808

KEYWORDS: Crystals, Scanning tunneling microscopy, Data storage, Optical storage, Micro raman spectroscopy, Raman spectroscopy, Nanolithography, Mass spectrometry, Vacuum tubes, Helium neon lasers

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SPIE Journal Paper | 1 March 2000

Excited-state four-wave mixing for nonresonant holographic storage in azo-dye-doped polymers

Chunfei Li, Xinxian Bao

OE, Vol. 39, Issue 03, (March 2000) https://doi.org/10.1117/12.10.1117/1.602437

KEYWORDS: Absorption, Four wave mixing, Reflectivity, Holography, Polymers, Molecules, Phase conjugation, Baryon acoustic oscillations, Helium neon lasers, Lithium

Proceedings Article | 29 October 1998 Paper

Optical nonlinearity and multiplex holographic storage in azo side-chain liquid crystalline polymer

Xinxian Bao, Chunfei Li, Yanqing Tian, William Tong

Proceedings Volume 3474, (1998) https://doi.org/10.1117/12.328575

KEYWORDS: Polymers, Diffraction gratings, Polarization, Holography, Liquid crystals, Refractive index, Liquids, Crystals, Diffraction, Nonlinear optics

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Optical nonlinearity and multiplex holographic storage using azo side-chain polymer are studied by using degenerate four- wave mixing and polarized pump-probe laser method. The He-Ne excitation laser wavelength is located at the tail end of the absorption peak of the sample. This material shows high grating diffraction efficiency and promises information storage capability using weak absorption. The diffraction efficiency of the grating is up to the order of 10^-2. The effect of input beam polarization planes on grating is studied. The diffraction grating efficiency is lowest when the polarization of the redout beam is orthogonal to that of both writing beams. An angle multiplex holographic storage study is also performed in the sample. Information can be stored for a long time at room temperature. The information readout of this multiplex holographic storage system can be controlled by the polarization state of the readout beam. Dependence of grating diffraction efficiency on the sample temperature is studied. It is demonstrated that the higher the temperature under the melting temperature of the sample, the higher the diffraction efficiency and the faster the relaxation time of the grating. The grating is completely erased by increasing the temperature over the melting temperature of the sample. Reading the grating with a circularly polarized light does not erase the grating. When two recording beams are turned off, a large part of the grating remains for a long time and only a small part of the grating degrades. The results show that the azo side-chain polymer is a good information storage material. The anisotropic optical nonlinear refractive index of the sample is also measured. The relationship of the nonlinear refractive index of the samples, the different ratios of azo functional groups in the polymers, and the temperature of the sample are also studied. The highest nonlinear refractive index is up to the order of 10^-2. The optical nonlinearity of the samples increase with increasing sample temperature. No anisotropic nonlinearity appears when the temperature of the sample is over the melting temperature of the sample. The anisotropic nonlinearity levels of three samples with different azo side-group ratios in the polymer are compared.

Proceedings Article | 16 October 1998 Paper

Third-order nonlinearity and polarization holographic storage in acceptor-donor azo dye-doped PMMA films

Xinxian Bao, Chunfei Li, William Tong

Proceedings Volume 3473, (1998) https://doi.org/10.1117/12.328185

KEYWORDS: Polarization, Holography, Absorption, Optical proximity correction, Polymethylmethacrylate, Molecules, Diffraction gratings, Laser beam diagnostics, Reflectivity, Diffraction

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Proceedings Article | 23 January 1997 Paper

Excited-state optical storage study in a dye-doped film using four-wave mixing spectroscopy

Xinxian Bao, Chunfei Li, Hongjing Kan, Lu Dai, William Tong

Proceedings Volume 2998, (1997) https://doi.org/10.1117/12.264197

KEYWORDS: Four wave mixing, Optical storage, Diffraction gratings, Argon ion lasers, Polymers, Helium neon lasers, Laser beam diagnostics, Transient nonlinear optics, Nonlinear optics, Nd:YAG lasers

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Proceedings Article | 16 December 1996 Paper

Optical power limiting of fullerenes

Yinglin Song, Xinxian Bao, Feng Li, Xuedong Yang, Xueru Zhang, Ruibo Wang, Chunfei Li

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262983

KEYWORDS: Absorption, Pulsed laser operation, Fullerenes, Solids, Optical limiting, Nd:YAG lasers, Switching, Transient nonlinear optics, Laser systems engineering, Time metrology

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Proceedings Article | 16 December 1996 Paper

Excited-state absorption/random surface scattering optical limiter

Yinglin Song, Xinxian Bao, Feng Li, Xuedong Yang, Ruibo Wang, Chunfei Li

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262981

KEYWORDS: Scattering, Optical limiting, Fullerenes, Absorption, Glasses, Laser scattering, Nd:YAG lasers, Surface finishing, Lithium, Q switching

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Proceedings Article | 1 November 1996 Paper

Excited-state absorption optical limiting of a novel organic polymer

Yinglin Song, Feng Li, Xinxian Bao, Xuedong Yang, Ruibo Wang, Chunfei Li

Proceedings Volume 2852, (1996) https://doi.org/10.1117/12.256177

KEYWORDS: Absorption, Optical limiting, Polymers, Picosecond phenomena, Solids, Visible radiation, Nd:YAG lasers, Nonlinear optics, Transmittance, Lithium

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Proceedings Article | 1 November 1996 Paper

Photoinduced birefringence in acceptor-donor azo dye doped in a polymer

Xinxian Bao, Chunfei Li

Proceedings Volume 2852, (1996) https://doi.org/10.1117/12.256163

KEYWORDS: Optical proximity correction, Polarization, Molecules, Birefringence, Absorption, Dielectric polarization, Reflectivity, Laser beam diagnostics, Polymers, Nonlinear optics

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Proceedings Article | 25 October 1996 Paper

Study of four-wave mixing based on excited state absorption

Xinxian Bao, Chunfei Li

Proceedings Volume 2849, (1996) https://doi.org/10.1117/12.255497

KEYWORDS: Absorption, Molecules, Four wave mixing, Reflectivity, Signal processing, Polymers, Helium neon lasers, Phase conjugation, Optical storage, Signal detection

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Proceedings Article | 18 August 1995 Paper

Nonresonant real-time polarization holographic storage in azo-dye-doped polymer film

Xinxian Bao, Shutian Liu, Jiandong Xu, Chunfei Li

Proceedings Volume 2529, (1995) https://doi.org/10.1117/12.217000

KEYWORDS: Polarization, Optical proximity correction, Reflectivity, Phase conjugation, Molecules, Holography, Dielectric polarization, Interferometry, Laser beam diagnostics, Polymethylmethacrylate

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Showing 5 of 12 publications

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