Prof. Zhaogu Cheng Profile

Prof. Zhaogu Cheng

at Shanghai Institute of Optics and Fine Mechanics

SPIE Involvement:

Author

Publications (19)

SPIE Journal Paper | 1 June 2005

Welding of Al alloy plates using a novel high-average-power pulsed CO₂ laser

Haijun Gao, Zhaogu Cheng, Guoliang Xu

OE, Vol. 44, Issue 06, 064201, (June 2005) https://doi.org/10.1117/12.10.1117/1.1921187

KEYWORDS: Gas lasers, Pulsed laser operation, Aluminum, Carbon monoxide, Laser welding, Modulation, Optical engineering, Electrodes, Heat treatments, Carbon dioxide lasers

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Proceedings Article | 8 October 2004 Paper

Study on high-accuracy displacement interferometer for lithography application

Zhaogu Cheng, Haijun Gao, Xiongliang Chai, Zhigao Ning, Huijie Huang

Proceedings Volume 5662, (2004) https://doi.org/10.1117/12.596381

KEYWORDS: Interferometers, Semiconducting wafers, Lithography, Atmospheric optics, Distance measurement, Electronics, Refractive index, Metrology, Laser metrology, Humidity

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Proceedings Article | 8 December 2003 Paper

Design and application of fiber optic evanescent wave biosensor

Huijie Huang, Junhui Zhai, Yongkai Zhao, Ruifu Yang, Bingqiang Ren, Zhaogu Cheng, Longlong Du, Dunwu Lu

Proceedings Volume 5254, (2003) https://doi.org/10.1117/12.546217

KEYWORDS: Biosensors, Fiber optics, Scanners, Optical filters, Mirrors, Semiconductor lasers, Cladding, Signal to noise ratio, Luminescence, Signal detection

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Proceedings Article | 18 November 2003 Paper

New device of alarm and control of dewfall for laser optics

Zhaogu Cheng, Rufeng Li

Proceedings Volume 5063, (2003) https://doi.org/10.1117/12.540934

KEYWORDS: Laser optics, Control systems, Humidity, Lenses, Device simulation, Optical simulations, Carbon dioxide lasers, High power lasers, Temperature metrology, Sensors

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Proceedings Article | 3 March 2003 Paper

High-power CO2 laser welding of Al alloy plates

Zhaogu Cheng, Guoliang Xu, Quanzhong Zhao, Yongfeng Lu

Proceedings Volume 4831, (2003) https://doi.org/10.1117/12.497781

KEYWORDS: Aluminum, Laser welding, Carbon dioxide lasers, High power lasers, Metals, Copper, Heat treatments, Laser development, Reflectivity, Energy efficiency

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Proceedings Article | 3 March 2003 Paper

Novel adaptive laser processing system for flying optics

Quanzhong Zhao, Zhaogu Cheng, Haijun Gao, Huijie Huang

Proceedings Volume 4831, (2003) https://doi.org/10.1117/12.497930

KEYWORDS: Laser processing, Adaptive optics, Laser systems engineering, Mirrors, Control systems, Deformable mirrors, Laser sources, Gaussian beams, Head, Integrated optics

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Proceedings Article | 3 March 2003 Paper

Folded resonator for reactor-pumped 3He/Ar/Xe systems

Wei Shen, Zhaogu Cheng, Junsheng Wan, Huijie Huang

Proceedings Volume 4831, (2003) https://doi.org/10.1117/12.497937

KEYWORDS: Resonators, Mirrors, Reflectivity, Reflectors, Laser resonators, Xenon, Gas lasers, Energy efficiency, Pulsed laser operation, Chemical species

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Proceedings Article | 3 March 2003 Paper

Effect of resonator thermal deformation on focusing characteristics and the compensation for a high-power CO2 laser

Haijun Gao, Zhaogu Cheng, Quanzhong Zhao, Yingqi Huang

Proceedings Volume 4831, (2003) https://doi.org/10.1117/12.497938

KEYWORDS: Carbon dioxide lasers, Output couplers, Deformable mirrors, Thermal effects, High power lasers, Resonators, Coating, Absorption, Adaptive optics, Distortion

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Proceedings Article | 25 February 2002 Paper

Recent progress of laser precision microfabrication in China

Zhaogu Cheng, Guoliang Xu, Quanzhong Zhao, Cuiqing Liu

Proceedings Volume 4426, (2002) https://doi.org/10.1117/12.456881

KEYWORDS: Excimer lasers, Microfabrication, Laser applications, Information technology, Manufacturing, Thin films, Optical storage, Nd:YAG lasers, Laser drilling, Superconductors

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Proceedings Article | 29 October 2001 Paper

Laser-diode-based optical sensor for laser particle counter

Huijie Huang, Yongkai Zhao, Ren Bingqiang, Longlong Du, Zhaogu Cheng, Dunwu Lu

Proceedings Volume 4595, (2001) https://doi.org/10.1117/12.446633

KEYWORDS: Particles, Atmospheric particles, Semiconductor lasers, Sensors, Light scattering, Laser optics, Optical proximity correction, Laser scattering, Optical sensors, Aerosols

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Proceedings Article | 16 August 2000 Paper

Misalignment of parabolic mirror in lightcraft vehicle

Hongbin Shi, Zhaogu Cheng, Jinbo Jiang, Xianqin Li, Guoliang Xu, Jin'an Xia

Proceedings Volume 4065, (2000) https://doi.org/10.1117/12.407313

KEYWORDS: Mirrors, Monochromatic aberrations, Geometrical optics, Off axis mirrors, Reflectivity, Diffraction, Gaussian beams, Ray tracing, Tolerancing, Missiles

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Proceedings Article | 16 August 2000 Paper

Far-field distributions of some laser modes and the effect of spatial coherence

Jinbo Jiang, Zhaogu Cheng, Xianqin Li, Guoliang Xu, Hongbin Shi, Jin'an Xia

Proceedings Volume 4065, (2000) https://doi.org/10.1117/12.407317

KEYWORDS: Modes of laser operation, Spatial coherence, Diffraction, Resonators, Atmospheric propagation, Laser beam propagation, High power lasers, Superposition, Near field, Distortion

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Proceedings Article | 16 August 2000 Paper

Focus characteristics of laser beam for long-distance propagation in atmosphere

Zhaogu Cheng, Xianqin Li, Jinbo Jiang, Guoliang Xu, Hongbin Shi, Jin'an Xia

Proceedings Volume 4065, (2000) https://doi.org/10.1117/12.407376

KEYWORDS: Atmospheric propagation, Laser beam propagation, Wave propagation, Gaussian beams, Laser applications, Refractive index, Atmospheric optics, Atmospheric turbulence, Thermal blooming, Light wave propagation

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Proceedings Article | 7 February 2000 Paper

Butt weld of aluminum alloy plates 6063 and LY12 by laser beam

Jin'an Xia, Zhaogu Cheng, Guoliang Xu, Xianqin Li

Proceedings Volume 3888, (2000) https://doi.org/10.1117/12.377082

KEYWORDS: Aluminum, Carbon dioxide lasers, Laser welding, Particles, High power lasers, Crystals, Laser crystals, Reflectivity, Absorption, Chemical elements

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Proceedings Article | 7 February 2000 Paper

Laser keyhole welding on aluminum alloys

Guoliang Xu, Zhaogu Cheng, Jin'an Xia, Xianqin Li, Jinbo Jiang

Proceedings Volume 3888, (2000) https://doi.org/10.1117/12.377081

KEYWORDS: Aluminum, Laser welding, Magnesium, Absorption, Signal processing, Laser processing, Signal detection, Metals, Laser energy, Plasma

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Proceedings Article | 7 February 2000 Paper

Semiquantitative study of amorphous structures in laser cladding of ZL111 aluminum alloy

Xianqin Li, Zhaogu Cheng, Gongying Liang, Jin'an Xia, Guoliang Xu

Proceedings Volume 3888, (2000) https://doi.org/10.1117/12.377084

KEYWORDS: Cladding, Annealing, Aluminum, Scanning electron microscopy, Transmission electron microscopy, Crystals, Gas lasers, Coating, Thermal analysis, Chemical elements

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