Prof. Zhaoshuo Tian Profile

Prof. Zhaoshuo Tian

at Harbin Institute of Technology

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 30 April 2024 Paper

Measurement of chlorophyll in water based on Y-type fiber

Xiaohua Che, Fang Huang, Xiuyue Dong, Ke Yang, Junying Li, Tao Shi, Zhaoshuo Tian

Proceedings Volume 13154, 131540T (2024) https://doi.org/10.1117/12.3021178

KEYWORDS: Chlorophyll, Fluorescence, Water quality, Optical fibers, Spectroscopy, Signal detection, Water, Signal processing

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Proceedings Article | 18 December 2023 Paper

Measurement of permanganate index in water using hand-held fluorescence spectrometer

Xiaohua Che, Ke Yang, Junying Li, Tao Shi, Xianqing Wang, Deming Fu, Zhaoshuo Tian

Proceedings Volume 12968, 129680I (2023) https://doi.org/10.1117/12.3002256

KEYWORDS: Spectroscopy, Fluorescence, Fluorescence spectroscopy, Water, Fluorescence intensity, Environmental monitoring, Spectrometer engineering, Water quality, Seaborgium, Equipment

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Fluorescence spectroscopy has received attention in the water quality monitoring, as it is a rapid, reagentless technique that requires no sample preparation prior to analysis. It has been investigated as a monitoring tool for a range of applications including water quality and pollution monitoring in marine, rivers and lakes. The permanganate index (CODmn) can reflect the degree of water damage by organic pollutants, and is an important indicator for water environment protection and marine monitoring. In this paper, we present a compact handheld fluorescence spectrometer for water CODmn measurement. The semiconductor laser, spectroscopic unit and detection unit are integrated in the spectrometer, its actual size is about 100mm×60mm×25mm. The spectrometer covers the wavelength range of 400-760 nm, with spectral resolution of 2 nm. The semiconductor laser emitting at 405 nm is employed as the excitation source, which is controlled by the computer. The laser is incident into the water in test bottle at a certain angle in order to avoid the interference come from the bottle wall. The scattered light, water Raman light and organic matter fluorescence excited by the laser can be received by the spectrometer. The CODmn can be obtained according to the method of intensity ratio of laser Fluorescence-Raman signal proposed by us. In the experiment, water samples collected from 9 different sites of Sow River at Weihai are tested by using our designed handheld fluorescence spectrometer. The CODmn can be achieved by the computer analyzing the spectral curve. In addition, we also measured the 9 water samples by chemical method, and the obtained permanganate index compared very well to the values by using our designed spectrometer: a significant relationship (R²=0.941) is identified between the two methods. The experimental results indicate that our designed spectrometer has the advantages of small size, high sensitivity and high detection speed, which is promising for CODmn monitoring in many water areas.

Proceedings Article | 12 March 2021 Paper

Remote sensing of the aquatic environment by semiconductor laser-induced fluorescence lidar

Lanjun Sun, Shaojun Zhang, Zhaoshuo Tian, Yuehong Gong, Yanchao Zhang

Proceedings Volume 11763, 1176312 (2021) https://doi.org/10.1117/12.2586202

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Proceedings Article | 17 April 2020 Paper

Detection of marine metal elements by LIBS based on passive Q-switched laser

Zongjie Bi, Songlin Yin, Zhaoshuo Tian, Shiyou Fu

Proceedings Volume 11455, 114557I (2020) https://doi.org/10.1117/12.2565354

KEYWORDS: Laser induced breakdown spectroscopy, Pulsed laser operation, Q switched lasers, Spectroscopy

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Proceedings Article | 12 March 2020 Paper

NOLM-based mode-locked Yb-doped fiber laser with wide-spectrum

Tianqi Zhang, Yuzhai Pan, Lixin Yang, Zhaoshuo Tian, Wenjun Liu, Jieguang Miao, Quanli Dong

Proceedings Volume 11437, 1143706 (2020) https://doi.org/10.1117/12.2542238

KEYWORDS: Mode locking, Fiber lasers, Solitons, Polarization, Raman spectroscopy, Mirrors, Raman scattering, Ytterbium, Ions, Output couplers

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Proceedings Article | 12 March 2020 Paper

Dark soliton trains generation from self-mode-locking fiber laser with an ultra-long ring cavity

Yuzhai Pan, Tianqi Zhang, Xiaohui Qi, Zhaoshuo Tian, Wenjun Liu, Jieguang Miao, Quanli Dong

Proceedings Volume 11437, 114370N (2020) https://doi.org/10.1117/12.2550055

KEYWORDS: Solitons, Fiber lasers, Polarization, Modulation, Optical filters, Nonlinear optics, Phase shift keying, Multimode fibers, Optical isolators, Light wave propagation

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SPIE Journal Paper | 15 December 2018

Design of precise delay system for streak tube imaging lidar

Zongjie Bi, Zihao Ciu, Yanchao Zhang, Zhaoshuo Tian

OE, Vol. 57, Issue 12, 124104, (December 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.12.124104

KEYWORDS: Imaging systems, LIDAR, Analog electronics, 3D image processing, 3D acquisition, Image processing, 3D image reconstruction, Signal processing, Control systems, Process control

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Proceedings Article | 5 March 2018 Paper

Research on the underwater target imaging based on the streak tube laser lidar

Zihao Cui, Zhaoshuo Tian, Yanchao Zhang, Zongjie Bi, Gang Yang, Erdan Gu

Proceedings Volume 10710, 107103G (2018) https://doi.org/10.1117/12.2317049

KEYWORDS: Imaging systems, Image resolution, Underwater imaging, Control systems, LIDAR, 3D acquisition, 3D image processing, Spatial resolution, Image processing, Target detection

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Proceedings Article | 5 March 2018 Paper

Study on high power ultraviolet laser oil detection system

Qi Jin, Zihao Cui, Zongjie Bi, Yanchao Zhang, Zhaoshuo Tian, Shiyou Fu

Proceedings Volume 10710, 107103C (2018) https://doi.org/10.1117/12.2316961

KEYWORDS: Luminescence, Remote sensing, Pollution, Signal detection, Laser induced fluorescence, Image intensifiers, Ultraviolet radiation, Laser systems engineering, Ocean optics, Fluorescence spectroscopy

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Proceedings Article | 5 March 2018 Paper

Theoretical and experimental research on laser-beam homogenization based on metal gauze

Libao Liu, Shanshan Zhang, Ling Wang, Yanchao Zhang, Zhaoshuo Tian

Proceedings Volume 10710, 107104H (2018) https://doi.org/10.1117/12.2317806

KEYWORDS: Metals, Gas lasers, Homogenization, Carbon monoxide, Thermography, Diffraction, Laser processing, Laser applications, Beam splitters, Gaussian beams

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SPIE Journal Paper | 4 January 2018

Experimental study on microlaser fluorescence spectrometer

Zhaoshuo Tian, Ling Wang, Shanshan Zhang, Yanchao Zhang, Libao Liu, Erdan Gu

OE, Vol. 57, Issue 01, 014102, (January 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.1.014102

KEYWORDS: Spectroscopy, Luminescence, Fluorescence spectroscopy, Laser induced fluorescence, Laser spectroscopy, Solids, Liquids, Charge-coupled devices, Raman spectroscopy, Laser systems engineering

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Proceedings Article | 24 October 2017 Paper

Fluorescence instrument based on direct view holographic grating prism for remote sensing

Lanjun Sun, Yanchao Zhang, Shiyou Fu, Zhaoshuo Tian

Proceedings Volume 10462, 104622F (2017) https://doi.org/10.1117/12.2284485

KEYWORDS: Luminescence, Holography, Prisms, Remote sensing, Laser induced fluorescence, LIDAR

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Proceedings Article | 15 October 2015 Paper

A portable direct view configuration prism spectrometer using a double Amici prism

Lanjun Sun, Yanchao Zhang, Zhaoshuo Tian, Xiuyun Ren, Shiyou Fu

Proceedings Volume 9674, 96740X (2015) https://doi.org/10.1117/12.2199074

KEYWORDS: Prisms, Spectroscopy, Charge-coupled devices, Spectral resolution, Spectrometer engineering, Distortion, Glasses, Optical design, Diffraction gratings, Image processing

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SPIE Journal Paper | 15 July 2014

Research on laser wavelength measurement with rotating Fabry–Perot mirror

Zhaoshuo Tian, Zhenghe Sun, Yanchao Zhang, Shiyou Fu

OE, Vol. 53, Issue 07, 074107, (July 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.074107

KEYWORDS: Mirrors, Transmittance, Gas lasers, Laser applications, Reflectivity, Germanium, Carbon monoxide, Reflectors, Laser development, Laser spectroscopy

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SPIE Journal Paper | 5 May 2014

Measurement of soliton decay and dispersive wave generation in photonic crystal fiber

Xiuyun Ren, Zhaoshuo Tian, Ruizhe Lin, Wenjun Liu

OE, Vol. 53, Issue 05, 054101, (May 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.5.054101

KEYWORDS: Solitons, Dispersion, Photonic crystal fibers, Ultrafast phenomena, Crystals, Wave propagation, Second-harmonic generation, Solids, Nonlinear optics, Femtosecond phenomena

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Proceedings Article | 16 February 2009 Paper

Study of active frequency stabilized CO2 laser for THz radiation

YuDe Sun, Zhaoshuo Tian

Proceedings Volume 7277, 72770Y (2009) https://doi.org/10.1117/12.822915

KEYWORDS: Laser stabilization, Pulsed laser operation, Carbon dioxide lasers, Carbon dioxide, Terahertz radiation, Molecules, Carbon monoxide, Laser development, Mirrors, Absorption

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Proceedings Article | 6 February 2008 Paper

Incoherent and coherent output for radial slab solid-state laser

Shiyou Fu, Zhaoshuo Tian, Yuzhai Pan, Xiangjun Chen

Proceedings Volume 6823, 682303 (2008) https://doi.org/10.1117/12.761119

KEYWORDS: Solid state lasers, Solids, Near field, Near field optics, High power lasers, Thermal effects, Gas lasers, Lamps, Laser development, Solid state physics

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Proceedings Article | 18 January 2006 Paper

Incoherent and coherent coupling for multi-slab solid laser

Zhaoshuo Tian, Shiliang Qu, Zhenghe Sun, Shutian Liu

Proceedings Volume 6028, 60281X (2006) https://doi.org/10.1117/12.667329

KEYWORDS: Solids, Near field optics, Carbon dioxide lasers, High power lasers, Near field, Semiconductor lasers, Laser applications, Thermal effects, Mirrors, Laser development

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SPIE Journal Paper | 1 February 2005

Tunable electro-optically Q-switched rf excited partial Z-fold CO2 waveguide laser with two channels

Zhaoshuo Tian, Hussein Badran, Wang Qi

OE, Vol. 44, Issue 02, 024202, (February 2005) https://doi.org/10.1117/12.10.1117/1.1839226

KEYWORDS: Gas lasers, Electro optics, Waveguide lasers, Pulsed laser operation, Q switched lasers, Carbon monoxide, Waveguides, Resonators, Heterodyning, Laser stabilization

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Proceedings Article | 26 January 2005 Paper

Compact electro-optically Q-switched partial Z-fold CO2 waveguide laser with two channels

Zhaoshuo Tian, Badran Hussein, Qi Wang

Proceedings Volume 5627, (2005) https://doi.org/10.1117/12.574625

KEYWORDS: Electro optics, Q switched lasers, Waveguides, Crystals, Gas lasers, Waveguide lasers, Pulsed laser operation, Carbon monoxide, Refractive index, Mirrors

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Proceedings Article | 5 September 2002 Paper

Pulse heterodyne reception with electro-optically Q-switched rf two-channel waveguide CO2 laser

Zhaoshuo Tian, Qi Wang

Proceedings Volume 4914, (2002) https://doi.org/10.1117/12.481795

KEYWORDS: Crystals, Laser crystals, Signal detection, Waveguides, Heterodyning, Carbon dioxide lasers, Electro optics, Pulsed laser operation, Q switched lasers, Waveguide lasers

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Showing 5 of 21 publications

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