Dr. Ji Zhao Profile

Dr. Ji Zhao

at Beijing Institute of Technology

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 12 October 2020 Paper

THz research on high-frequency waves under different ionization modes

Ji Zhao, Xiaojian Li, Guang Yang, XiuLi Nie, Xiaolin Du, Tiannan Wang

Proceedings Volume 11559, 115590N (2020) https://doi.org/10.1117/12.2573340

KEYWORDS: Terahertz radiation, Ionization, Spectroscopy, Four wave mixing, Laser development, Laser applications, Imaging spectroscopy, Biosensing, Material characterization, Ultrafast laser spectroscopy

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Proceedings Article | 5 June 2018 Paper

Design of TMC wavefront coding system based on user defined surface mask plate

Xiaohu Guo, Tielin Lu, Jingjing Zhu, Weiwei Zhu, Meng Guo, Zuming Kang, Xiaoce Sun, Ji Zhao, Lingqin Kong, Renna Sa

Proceedings Volume 10690, 106900Z (2018) https://doi.org/10.1117/12.2313043

KEYWORDS: Wavefronts, Zemax, Modulation transfer functions, Modulation, Mirrors, Ray tracing, Refractive index, Phase shift keying, Image compression, Imaging systems

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Proceedings Article | 10 January 2018 Paper

Design of a continuously zoom optical system

Xiaohu Guo, Tielin Lu, Jingshui Zhang, Lingqin Kong, Ji Zhao, Wen Zhang, Fupeng Wang

Proceedings Volume 10616, 106161I (2018) https://doi.org/10.1117/12.2295592

KEYWORDS: Zoom lenses, Modulation transfer functions, Distortion, Optical authentication, Image quality, Resistance, Monochromatic aberrations, Aspheric lenses, Neodymium, Lithium

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Proceedings Article | 9 September 2015 Paper

Research on signal-to-noise ratio characteristics and image restoration for wavefront coding

Yijian Wu, Yuejin Zhao, Xiaohu Guo, Liquan Dong, Wei Jia, Ming Liu, Ji Zhao, Yun Liu

Proceedings Volume 9598, 95980O (2015) https://doi.org/10.1117/12.2186367

KEYWORDS: Signal to noise ratio, Wavefronts, Image restoration, Filtering (signal processing), Modulation transfer functions, Imaging systems, Image compression, Interference (communication), Image processing, Image quality

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Proceedings Article | 31 August 2015 Paper

Coherent detection for continuous terahertz wave

Hui Yuan, Tielin Lu, Jingshui Zhang, Liangliang Zhang, Ji Zhao, Yuejin Zhao

Proceedings Volume 9585, 95850O (2015) https://doi.org/10.1117/12.2187465

KEYWORDS: Terahertz radiation, Imaging systems, Signal detection, Imaging spectroscopy, Millimeter wave imaging, Millimeter wave sensors, Terahertz spectroscopy, Electro optics, Crystals, Signal processing

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Proceedings Article | 31 August 2015 Paper

The study of gas species on THz generation from laser-induced air plasma

Ji Zhao, LiangLiang Zhang, YiJian Wu, Tong Wu, Hui Yuan, CunLin Zhang, YueJin Zhao

Proceedings Volume 9585, 958509 (2015) https://doi.org/10.1117/12.2186920

KEYWORDS: Terahertz radiation, Argon, Plasma, Helium, Gases, Nitrogen, Pollution control, Electrons, Chemical species, Femtosecond phenomena

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Proceedings Article | 12 August 2015 Paper

Systematic study of terahertz wave generation in laser-included plasma

Ji Zhao, LiangLiang Zhang, YiMan Luo, Tong Wu, CunLin Zhang, YueJin Zhao

Proceedings Volume 9625, 962508 (2015) https://doi.org/10.1117/12.2192938

KEYWORDS: Terahertz radiation, Plasma, Plasma generation, Ions, Laser applications, Electrons, Laser beam diagnostics, Modulation, Pulsed laser operation, Particles

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Proceedings Article | 12 August 2015 Paper

Strong THz to IR thermal radiation from random metallic nanostructures by femtosecond laser excitation

Liangliang Zhang, Kaijun Mu, Ji Zhao, Tong Wu, Hai Wang, Cunlin Zhang

Proceedings Volume 9625, 962509 (2015) https://doi.org/10.1117/12.2192952

KEYWORDS: Metals, Terahertz radiation, Femtosecond phenomena, Nanostructures, Absorption, Nanostructuring, Surface finishing, Thermography, Ruthenium, Sensors

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Proceedings Article | 12 August 2015 Paper

Terahertz wave generation from preformed air plasma

Tong Wu, Liangliang Zhang, Ji Zhao, Xiaoyan Xu, Cunlin Zhang

Proceedings Volume 9625, 962503 (2015) https://doi.org/10.1117/12.2193115

KEYWORDS: Terahertz radiation, Plasma, Beam controllers, Plasma generation, Ionization, Pulsed laser operation, Electrons, Terahertz technology, Optical amplifiers, Beam splitters

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SPIE Journal Paper | 9 April 2015

Terahertz wave absorption via femtosecond laser-filament concatenation

Ji Zhao, LiangLiang Zhang, Tong Wu, XiaoYan Xu, CunLin Zhang, YueJin Zhao

OE, Vol. 54, Issue 04, 046104, (April 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.4.046104

KEYWORDS: Terahertz radiation, Plasma, Absorption, Femtosecond phenomena, Beam controllers, Electrons, Refractive index, Gases, Argon, Imaging spectroscopy

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Proceedings Article | 31 December 2013 Paper

Terahertz frequency spectrum characterization of coherent heterodyne time-domain spectrometer

Ji Zhao, Liang-liang Zhang, Yi-man Luo, Tong Wu, Cunlin Zhang, Yue-jin Zhao

Proceedings Volume 9042, 904210 (2013) https://doi.org/10.1117/12.2036332

KEYWORDS: Terahertz radiation, Imaging spectroscopy, Plasma, Laser beam diagnostics, Spectroscopy, Pulsed laser operation, Heterodyning, Optoelectronics, Crystals, Nonlinear optics

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Proceedings Article | 23 August 2013 Paper

Characterization of terahertz emission from laser-induced air plasma under different pump power

Yi-man Luo, Liang-liang Zhang, Ji Zhao, Cun-lin Zhang

Proceedings Volume 8909, 89090F (2013) https://doi.org/10.1117/12.2032924

KEYWORDS: Terahertz radiation, Plasma, Four wave mixing, Modulation, Mirrors, Crystals, Laser crystals, Imaging spectroscopy, Linear filtering, Silicon

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Showing 5 of 12 publications

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