Prof. Xu Liu Profile

Prof. Xu Liu

Professor at Zhejiang Univ

SPIE Involvement:

Conference Program Committee | Author | Editor

Publications (79)

SPIE Journal Paper | 8 April 2024 Open Access

Review of bio-inspired image sensors for efficient machine vision

Wenhao Tang, Qing Yang, Hang Xu, Yiyu Guo, Jiqiang Zhang, Chunfang Ouyang, Leixin Meng, Xu Liu

AP, Vol. 6, Issue 02, 024001, (April 2024) https://doi.org/10.1117/12.10.1117/1.AP.6.2.024001

KEYWORDS: Image sensors, Image processing, Visualization, Machine vision, Biomimetics, Information visualization, Signal processing, Visual system, Sensors, Image compression

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Proceedings Article | 13 March 2024 Presentation + Paper

Multi-modal super-resolution imaging by a single multimode fiber endoscopy

Wen Zhong, Qing Yang, Xu Liu

Proceedings Volume 12820, 1282005 (2024) https://doi.org/10.1117/12.3009788

KEYWORDS: Multimode fibers, Endoscopy, Multimodal imaging, Super resolution, Real time imaging, Imaging systems, Fluorescence imaging, Phase imaging

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Proceedings Article | 12 March 2024 Presentation + Paper

In vivo light-field encoded nano-imaging in a narrow space

Quanzhi Li, Zhong Wen, Liangliang Huang, Xu Liu, Qing Yang

Proceedings Volume 12852, 1285202 (2024) https://doi.org/10.1117/12.3009621

KEYWORDS: In vivo imaging, Super resolution, Nanoimaging, Image resolution, Microspheres, Evanescence, Spatial frequencies, Multimode fibers, Modulation, Imaging systems

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Proceedings Article | 29 November 2023 Poster

Research on low-cost and fast frequency-shift super-resolution microscopic imaging

Qianwei Zhang, Feihong Lin, Xiaoyu Yang, Mingwei Tang, Qing Yang, Xu Liu

Proceedings Volume 12766, 127660X (2023) https://doi.org/10.1117/12.2687083

KEYWORDS: Super resolution, Microscopy, Microscopes, Temporal resolution, Light sources and illumination, Image restoration, Cameras, Biological imaging, Super resolution microscopy, Spatial learning

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SPIE Journal Paper | 19 October 2023 Open Access

Direct laser writing breaking diffraction barrier based on two-focus parallel peripheral photoinhibition lithography (Erratum)

Dazhao Zhu, Liang Xu, Chenliang Ding, Zhenyao Yang, Yiwei Qiu, Chun Cao, Hongyang He, Jiawei Chen, Mengbo Tang, Lanxin Zhan, Xiaoyi Zhang, Qiuyuan Sun, Chengpeng Ma, Zhen Wei, Wenjie Liu, Xiang Fu, Cuifang Kuang, Haifeng Li, Xu Liu

AP, Vol. 5, Issue 05, 059801, (October 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.5.059801

KEYWORDS: Multiphoton lithography, Lithography, Diffraction, Engineering, Control systems, Sun, Optics, Optical instrument design, Lithium

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Proceedings Article | 5 October 2023 Presentation

Subdiffraction 3D nanofabrication and application

Chenliang Ding, Dazhao Zhu, Xi Liu, Qiulan Liu, Cuifang Kuang, Xu Liu

Proceedings Volume PC12653, PC1265308 (2023) https://doi.org/10.1117/12.2684534

KEYWORDS: Nanofabrication, 3D applications, Multiphoton lithography, Spatial resolution, Photoresist materials, Photonic crystals, Nanotechnology, Lithography, Light absorption, Laser applications

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SPIE Journal Paper | 19 September 2023 Open Access

Fluorescence interference structured illumination microscopy for 3D morphology imaging with high axial resolution

Yile Sun, Hongfei Zhu, Lu Yin, Hanmeng Wu, Mingxuan Cai, Weiyun Sun, Yueshu Xu, Xinxun Yang, Jiaxiao Han, Wenjie Liu, Yubing Han, Xiang Hao, Renjie Zhou, Cuifang Kuang, Xu Liu

AP, Vol. 5, Issue 05, 056007, (September 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.5.056007

KEYWORDS: Fluorescence, 3D image processing, Light sources and illumination, Image restoration, Fluorescence imaging, Microscopy, Image resolution, Stereoscopy, 3D image reconstruction, Mitochondria

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SPIE Journal Paper | 23 November 2022 Open Access

Direct laser writing breaking diffraction barrier based on two-focus parallel peripheral-photoinhibition lithography

AP, Vol. 4, Issue 06, 066002, (November 2022) https://doi.org/10.1117/12.10.1117/1.AP.4.6.066002

KEYWORDS: Printing, Spatial light modulators, Lithography, Multiphoton lithography, Diffraction, Scanning electron microscopy, Photonics, Control systems, 3D printing, Photonic nanostructures

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Proceedings Article | 15 November 2022 Paper

High-throughput and parallel direct laser writing system based on screen division multiplexing of spatial light modulator

Jisen Wen, Chenliang Ding, Dazhao Zhu, Liang Xu, Cuifang Kuang, Xu Liu

Proceedings Volume 12448, 124480X (2022) https://doi.org/10.1117/12.2638237

KEYWORDS: Spatial light modulators, Multiphoton lithography, Multiplexing, Modulation, Laser systems engineering, Holograms, Mirrors, Wave plates, Photoresist materials, Objectives

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SPIE Journal Paper | 6 July 2022 Open Access

Dual-modulation difference stimulated emission depletion microscopy to suppress the background signal

Wensheng Wang, Chuankang Li, Zhengyi Zhan, Zhimin Zhang, Yubing Han, Cuifang Kuang, Xu Liu

AP, Vol. 4, Issue 04, 046001, (July 2022) https://doi.org/10.1117/12.10.1117/1.AP.4.4.046001

KEYWORDS: Stimulated emission depletion microscopy, Luminescence, Modulation, Curium, Confocal microscopy, Signal detection, Spatial resolution, Perovskite, Microscopy, Super resolution microscopy

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SPIE Journal Paper | 22 December 2021 Open Access

Special Section Guest Editorial: Frontiers of Optical Coatings

Xinbin Cheng, Sven Schroder, Christopher Stolz, Xu Liu

OE, Vol. 61, Issue 03, 031201, (December 2021) https://doi.org/10.1117/12.10.1117/1.OE.61.3.031201

KEYWORDS: Optical coatings, Optical engineering, Reflectivity, Hybrid fiber optics, Thin film coatings, Optical fiber cables, Absorption, Oxygen, Mirrors, Laser systems engineering

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Proceedings Article | 28 March 2021 Poster + Presentation + Paper

Toward low-computation light field displays by foveated rendering

Chen Gao, Yifan Peng, Haifeng Li, Xu Liu

Proceedings Volume 11765, 1176514 (2021) https://doi.org/10.1117/12.2584300

KEYWORDS: LCDs, Visualization, Spatial resolution, Eye, Target acquisition, Prototyping, Optical tracking, Cones

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Proceedings Article | 10 October 2020 Poster + Presentation + Paper

Sub-diffraction dark spot localization microscopy

Chuankang Li, Yuzhu Li, Yuhang Li, Shaocong Liu, Zhengyi Zhan, Xiang Hao, Cuifang Kuang, Xu Liu

Proceedings Volume 11549, 115491F (2020) https://doi.org/10.1117/12.2574606

KEYWORDS: Microscopy, Molecules, Photon counting, Photodetectors, Super resolution microscopy, Diffraction

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Proceedings Article | 10 October 2020 Presentation

Chip-based wide-field 3D nanoscopy through tunable spatial-frequency-shift effect

Mingwei Tang, Xiaowei Liu, Qing Yang, Xu Liu

Proceedings Volume 11549, 115490L (2020) https://doi.org/10.1117/12.2575355

KEYWORDS: Super resolution microscopy, 3D acquisition, Wave propagation, Waveguides, Temporal resolution, Image resolution, Active optics, Absorption, Refractive index, Computer simulations

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Proceedings Article | 20 November 2019 Paper

Fan-shaped tracker (FsT) for particle trajectory reconstruction

Luhong Jin, Fenqiang Zhao, Wanni Lin, Xiaoxu Zhou, Cuifang Kuang, Liu Xu, Sergey Ablameyko, Yingke Xu

Proceedings Volume 11190, 111900Y (2019) https://doi.org/10.1117/12.2538450

KEYWORDS: Particles, Signal to noise ratio, Detection and tracking algorithms, Image processing, Microscopy, Algorithm development, Motion models, Point spread functions

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Proceedings Article | 19 November 2019 Paper

Axial resolution enhancement in light sheet microscopy using mode modulation

Chengfeng Zhang, Yuchen Chen, Cuifang Kuang, Xu Liu

Proceedings Volume 11186, 1118616 (2019) https://doi.org/10.1117/12.2537528

KEYWORDS: Microscopy, Modulators, Luminescence, Point spread functions

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Proceedings Article | 19 November 2019 Paper

Structured illumination microscopy with modified joint Richardson-Lucy deconvolution

Jintao Luo, Cuifang Kuang, Liu Xu

Proceedings Volume 11186, 111860T (2019) https://doi.org/10.1117/12.2537687

KEYWORDS: Deconvolution, Microscopy, Digital micromirror devices, Reconstruction algorithms, Optical transfer functions, Point spread functions, Convolution, Illumination engineering

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Proceedings Article | 15 November 2018 Paper

Effective improvement of subtraction method for light sheet fluorescence microscopy via tangent-function subtraction coefficient

Van Nhu Le, Xiaona Wang, Cuifang Kuang, Xu Liu

Proceedings Volume 10964, 1096462 (2018) https://doi.org/10.1117/12.2506484

KEYWORDS: Point spread functions, Luminescence, Microscopy, Beam splitters, Field emission displays, Spatial light modulators, Distortion, Modulation, Image resolution, Wave plates

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SPIE Journal Paper | 30 October 2018

Axial resolution enhancement for light sheet fluorescence microscopy via using the subtraction method

Vannhu Le, Xiaona Wang, Cuifang Kuang, Xu Liu

OE, Vol. 57, Issue 10, 103107, (October 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.10.103107

KEYWORDS: Luminescence, Microscopy, Point spread functions, Resolution enhancement technologies, Particles, Image resolution, Field emission displays, Optical engineering, 3D image processing, Image enhancement

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Proceedings Article | 19 September 2018 Presentation + Paper

High efficient metasurface for broadband achromatic focusing in visible spectrum

Chang Wang, Rengmao Wu, Siqi Liu, Xiao Tao, Wentao Zhang, Chenning Tao, Shengqian Chang, Peng Sun, Xu Liu, Zhenrong Zheng

Proceedings Volume 10719, 107192F (2018) https://doi.org/10.1117/12.2319566

KEYWORDS: Phase compensation, Polarization, Phase shifts, Chromatic aberrations, Finite-difference time-domain method, Diffraction, Imaging systems, Lenses

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SPIE Journal Paper | 10 May 2018

Resolution enhancement of confocal scanning microscopy using low-intensity imaging part of point spread function

Vannhu Le, Xiaona Wang, Cuifang Kuang, Xu Liu

OE, Vol. 57, Issue 05, 053106, (May 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.5.053106

KEYWORDS: Confocal microscopy, Point spread functions, Microscopy, Image resolution, Resolution enhancement technologies, Polarization, Image quality, Optical engineering, Sensors, Super resolution

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SPIE Journal Paper | 24 April 2018 Open Access

Widefield and total internal reflection fluorescent structured illumination microscopy with scanning galvo mirrors

Youhua Chen, Ruizhi Cao, Wenjie Liu, Dazhao Zhu, Zhiming Zhang, Cuifang Kuang, Xu Liu

JBO, Vol. 23, Issue 04, 046007, (April 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.4.046007

KEYWORDS: Mirrors, Polarization, Modulation, Imaging systems, Microscopy, Objectives, Luminescence, Phase shift keying, Live cell imaging, Beam splitters

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Proceedings Article | 15 March 2018 Presentation

Assessing tissues' inhomogeneous optical properties based on quantitative phase imaging and dark field microscopy with LED illumination (Conference Presentation)

Qiulan Liu, Cuifang Kuang, Xu Liu

Proceedings Volume 10503, 1050315 (2018) https://doi.org/10.1117/12.2293608

KEYWORDS: Image resolution, Microscopy, Light scattering, Absorption, Super resolution, Microscopes, Luminescence, Image quality, Phase contrast, Light sources

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Proceedings Article | 15 March 2018 Presentation

High contrast wide-field evanescent wave illuminated sub-diffraction imaging (Conference Presentation)

Chenlei Pang, Xiaowei Liu, Minghua Zhuge, Liu Xu, Qing Yang

Proceedings Volume 10506, 1050608 (2018) https://doi.org/10.1117/12.2291194

KEYWORDS: Super resolution, Microscopy, Super resolution microscopy, Image resolution, Nanotechnology, Nanomaterials, Image analysis, Stimulated emission depletion microscopy, Stochastic processes, Optical microscopy

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SPIE Journal Paper | 11 November 2017 Open Access

Lensless imaging through multiple phase patterns illumination

Anwar Hussain, Yicheng Li, Diyi Liu, Cuifang Kuang, Liu Xu

JBO, Vol. 22, Issue 11, 110502, (November 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.11.110502

KEYWORDS: Sensors, Image sensors, Signal to noise ratio, Image processing, Image resolution, Imaging systems, Microscopy, Image quality, Image retrieval, Spatial light modulators

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SPIE Journal Paper | 15 September 2017

Optimization of wavefront coding systems based on the use of multitarget optimization

Vannhu Le, Cuifang Kuang, Liu Xu

OE, Vol. 56, Issue 09, 093102, (September 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.9.093102

KEYWORDS: Optical transfer functions, Wavefronts, Image restoration, Imaging systems, Signal to noise ratio, Digital signal processing, Image compression, Phase shift keying, Modulation transfer functions, Point spread functions

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Proceedings Article | 16 August 2017 Open Access

Chinese National Optical Education Small Private Online Course system

XiaoJie Zhang, YuanFang Lin, Xu Liu, XiangDong Liu, ZhaoFeng Cen, XiaoTong Li, XiaoDong Zheng, XiaoPing Wang

Proceedings Volume 10452, 104520M (2017) https://doi.org/10.1117/12.2269293

KEYWORDS: Photonics, Internet, Optical engineering

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Proceedings Article | 16 August 2017 Open Access

The role of Chinese National Steering Committee of Optics and Photonics (CNSCOP)

Xu Liu, Baozhen Ge, Shiqiao Qin, Xiangdong Liu, Xiaojie Zhang, Yaocheng Shi

Proceedings Volume 10452, 1045229 (2017) https://doi.org/10.1117/12.2269409

KEYWORDS: Photonics, Standards development

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Proceedings Article | 16 August 2017 Open Access

Evolution of National University Students' Optical-Science-Technology competition in China

Xu Liu, XiangDong Liu, XiaoPing Wang, XiaoDong Zheng, YuanFang Lin, Kaiwei Wang

Proceedings Volume 10452, 104522R (2017) https://doi.org/10.1117/12.2269748

KEYWORDS: Optoelectronics, Photonics, Electrical engineering, Optics education, Optical communications

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Proceedings Article | 16 August 2017 Open Access

Hierarchy curriculum for practical skills training in optics and photonics

XiaoDong Zheng, XiaoPing Wang, Xu Liu, XiangDong Liu, YuanFang Lin

Proceedings Volume 10452, 104520F (2017) https://doi.org/10.1117/12.2269491

KEYWORDS: Photonics, Optical engineering, Optical design, Education and training

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Proceedings Article | 28 April 2017 Presentation

Broadband light absorber based on porous alumina structure covered with ultrathin iridium film (Conference Presentation)

Bo Fang, Chenying Yang, Weidong Shen, Yueguang Zhang, Xu Liu

Proceedings Volume 10112, 1011212 (2017) https://doi.org/10.1117/12.2251722

KEYWORDS: Metals, Solar cells, Absorption, Iridium, Infrared imaging, Dielectrics, Nanostructures, Light wave propagation, Surface plasmons, Superposition

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Proceedings Article | 5 January 2017 Paper

3D reconstruction of cortical microtubules using multi-angle total internal reflection fluorescence microscopy

Luhong Jin, Peng Xiu, Xiaoxu Zhou, Jiannan Fan, Cuifang Kuang, Xu Liu, Yingke Xu

Proceedings Volume 10245, 1024506 (2017) https://doi.org/10.1117/12.2265976

KEYWORDS: Luminescence, Microscopy, Biomedical optics, Optical imaging, Optical microscopy, Medical imaging

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Proceedings Article | 5 January 2017 Paper

A comprehensive description of diffraction phase microscopy

Cheng Zheng, Cuifang Kuang, Guangyuan Zhao, Xu Liu

Proceedings Volume 10245, 1024508 (2017) https://doi.org/10.1117/12.2266349

KEYWORDS: Microscopy, Diffraction, Phase imaging, Interferometry, Coherence (optics), Optical microscopy, Biomedical optics, Optical imaging

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Proceedings Article | 8 October 2015 Open Access

The development of O2O system of resource sharing courses for the discipline of optical engineering in China

Xu Liu, XiangDong Liu, XiaoDong Zheng, XiaoPing Wang, YuanFang Lin

Proceedings Volume 9793, 97930J (2015) https://doi.org/10.1117/12.2223071

KEYWORDS: Receivers, Adaptive optics, Photonics, Optical engineering, Defense technologies, Standards development, Video, Digital video recorders, Lithium, Optical instrument design

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Proceedings Article | 22 June 2015 Paper

A new indicator in early drought diagnosis of cucumber with chlorophyll fluorescence imaging

Heng Wang, Haifeng Li, Liang Xu, Xu Liu

Proceedings Volume 9530, 953008 (2015) https://doi.org/10.1117/12.2184618

KEYWORDS: Luminescence, Photosynthesis, Imaging systems, Modulation, Fluorescence spectroscopy, Physiology, Light emitting diodes, Light, Photons, Fermium

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Proceedings Article | 17 December 2014 Paper

Simultaneous control on the intensity and phase profile of laser beam with Monge-Ampère equation method

Yaqin Zhang, Rengmao Wu, Zhenrong Zheng, Haifeng Li, Xu Liu

Proceedings Volume 9293, 92930R (2014) https://doi.org/10.1117/12.2073350

KEYWORDS: Beam shaping, Freeform optics, Wavefronts, Lens design, Mathematical modeling, Nonlinear optics, Partial differential equations, Optical design, Collimation, System on a chip

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SPIE Journal Paper | 28 July 2014 Open Access

Automatic geometrical calibration for multiprojector-type light field three-dimensional display

Bei-shi Chen, Qing Zhong, Hai-feng Li, Xu Liu, Hai-song Xu

OE, Vol. 53, Issue 07, 073107, (July 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.073107

KEYWORDS: Calibration, 3D displays, Projection systems, Diffusers, 3D image processing, Interfaces, Prototyping, Displays, Optical engineering, Reconstruction algorithms

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Proceedings Article | 17 July 2014 Open Access

The high education of optical engineering in East China

Xu Liu, Xiangdong Liu, Xiaoping Wang, Jian Bai, Yuling Liu

Proceedings Volume 9289, 92890T (2014) https://doi.org/10.1117/12.2070286

KEYWORDS: Optical engineering, Photonics, Telecommunications, Computer aided design, Imaging systems, Optical instrument design, Optical communications, Computing systems, Mechanics, Integrated optics

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SPIE Journal Paper | 25 September 2013

Time-gated stimulated emission depletion nanoscopy

Yifan Wang, Cuifang Kuang, Zhaotai Gu, Yingke Xu, Shuai Li, Xiang Hao, Xu Liu

OE, Vol. 52, Issue 09, 093107, (September 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.9.093107

KEYWORDS: Stimulated emission depletion microscopy, Luminescence, Super resolution microscopy, Confocal microscopy, Point spread functions, Signal to noise ratio, Microscopy, Wave plates, Objectives, Polarization

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Proceedings Article | 18 September 2013 Paper

Optical design for uniform color mixing illumination system

Peng Liu, Zhenrong Zheng, Haifeng Li, Xu Liu

Proceedings Volume 8834, 88340Y (2013) https://doi.org/10.1117/12.2023352

KEYWORDS: Light emitting diodes, Lens design, LED lighting, Optical design, Light sources and illumination, Optimization (mathematics), Diffusers, LED displays, LED backlight, Spherical lenses

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Proceedings Article | 23 August 2013 Paper

High speed optical nanoscopy by stimulated emission depletion (STED) with galvo mirrors

Shuai Li, Cui-fang Kuang, Yi-fan Wang, Xiang Hao, Peng Xiu, Ying-ke Xu, Xu Liu

Proceedings Volume 8911, 89110D (2013) https://doi.org/10.1117/12.2034070

KEYWORDS: Stimulated emission depletion microscopy, Confocal microscopy, Mirrors, Microscopes, Diffraction, Luminescence, Nanoparticles, Microscopy, Collimation, Super resolution microscopy

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SPIE Journal Paper | 7 January 2013 Open Access

Large-sized light field three-dimensional display using multi-projectors and directional diffuser

Yi-fan Peng, Hai-feng Li, Qing Zhong, Xin-xing Xia, Xu Liu

OE, Vol. 52, Issue 01, 017402, (January 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.1.017402

KEYWORDS: Diffusers, Projection systems, 3D displays, Prototyping, 3D image processing, Image resolution, 3D volumetric displays, Optical engineering, Reconstruction algorithms, Distortion

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SPIE Journal Paper | 13 September 2012

Contrast-enhancing polarization control method for surface plasmon imaging sensor

Zihao Huang, Xiaoping Wang, Shuyue Zhan, Xu Liu

OE, Vol. 51, Issue 9, 094402, (September 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.9.094402

KEYWORDS: Polarization control, Gold, Prisms, Refractive index, Error analysis, Polarizers, Wave plates, Surface plasmons, Optical sensors, Optical testing

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SPIE Journal Paper | 1 March 2011

Omnidirectional multiview three-dimensional display based on direction-selective light-emitting diode array

Caijie Yan, Xu Liu, Di Liu, Jing Xie, Xin Xing Xia, Haifeng Li

OE, Vol. 50, Issue 03, 034003, (March 2011) https://doi.org/10.1117/12.10.1117/1.3552664

KEYWORDS: 3D displays, Light emitting diodes, LED displays, 3D image processing, 3D acquisition, 3D volumetric displays, 3D vision, Displays, Image processing, Cameras

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Proceedings Article | 25 September 2008 Paper

Spatial dispersion of optical thin films

Xu Liu, Zhen-yue Luo, Wei-dong Shen, Xue-zhen Sun, Pei-fu Gu

Proceedings Volume 7101, 71011A (2008) https://doi.org/10.1117/12.796688

KEYWORDS: Dispersion, Thin films, Thin film coatings, Thin film devices, Tunable filters, Reflectivity, Multilayers, Liquid crystals, Phase shifts, Polymers

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Proceedings Article | 23 September 2008 Paper

Secondary optical design for LED illumination using freeform lens

Yi Ding, Xu Liu, Zhen-rong Zheng, Pei-fu Gu

Proceedings Volume 7103, 71030K (2008) https://doi.org/10.1117/12.797810

KEYWORDS: Light emitting diodes, Lens design, Partial differential equations, Optical design, LED lighting, Light, Refraction, 3D modeling, Spherical lenses, Numerical analysis

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SPIE Journal Paper | 1 April 2007

Reproduction of a computer-generated hologram with a white light source and liquid crystal device

Xiaojie Zhang, Xu Liu, Hai-feng Li

OE, Vol. 46, Issue 04, 045803, (April 2007) https://doi.org/10.1117/12.10.1117/1.2714982

KEYWORDS: LCDs, Holograms, 3D image reconstruction, Computer generated holography, Holography, Light sources, Light emitting diodes, Image quality, Digital holography, Optical engineering

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Proceedings Article | 28 January 2006 Paper

Beam splitting phenomena in Fabry-Perot filter

Xue-zheng Sun, Pei-fu Gu, Hai-xing Chen, Bo Jin, Hai-feng Li, Xu Liu

Proceedings Volume 6025, 60250D (2006) https://doi.org/10.1117/12.666993

KEYWORDS: Beam splitters, Fabry–Perot interferometers, Thin films, Electronic filtering, Dispersion, Transmittance, Optical filters, Gaussian beams, Photonic crystals, Charge-coupled devices

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Proceedings Article | 9 December 2005 Paper

A new type of Shack-Hartmann wavefront sensor using liquid crystal display

Xiaoxi Chen, Xu Liu

Proceedings Volume 6024, 60240S (2005) https://doi.org/10.1117/12.666834

KEYWORDS: Wavefront sensors, Wavefronts, Microlens array, Holography, LCDs, Sensors, Microlens, Calibration, Optical design, Holograms

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Proceedings Article | 5 October 2005 Paper

Studies on superprism effects in multilayer thin film stacks

X. Liu, X. Z. Sun, P. F. Gu

Proceedings Volume 5963, 59630C (2005) https://doi.org/10.1117/12.625018

KEYWORDS: Thin films, Dispersion, Thin film coatings, Transmittance, Thin film devices, Reflectivity, Reflection, Multilayers, Optical filters, Prisms

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Proceedings Article | 10 February 2005 Paper

Spectrophotometer for measuring spectral transmittance and reflectance of large-aperture optical element

Jun Liu, Haifeng Li, Xu Liu, Peifu Gu

Proceedings Volume 5638, (2005) https://doi.org/10.1117/12.571857

KEYWORDS: Spectrophotometry, Transmittance, Reflectivity, Optical components, Monochromators, Optical coatings, Integrating spheres, Optical testing, Sensors, Signal processing

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Proceedings Article | 7 February 2005 Paper

Reduction in the reconstruction error of computer-generated holograms in liquid crystal panels

Xiaoxi Chen, Xu Liu, Xiaojie Zhang

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.575588

KEYWORDS: Holograms, LCDs, Holography, 3D image reconstruction, Computer generated holography, Liquid crystals, Diffraction, Reconstruction algorithms, 3D displays, Wavefronts

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Proceedings Article | 7 February 2005 Paper

Computer-generated holograms for 3D objects using the Fresnel zone plate

Xiaojie Zhang, Xu Liu, Xiaoxi Chen

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.570412

KEYWORDS: Zone plates, Holograms, Computer generated holography, 3D image processing, Holography, 3D image reconstruction, LCDs, Wavefronts, 3D modeling, Reconstruction algorithms

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Proceedings Article | 31 January 2005 Paper

Optical trait of unsymmetrical metal microcavity in organic thin film luminescent devices

Peng Wu, Xu Liu, Hui Ye, Ligong Yang, Hui Yang

Proceedings Volume 5624, (2005) https://doi.org/10.1117/12.575706

KEYWORDS: Metals, Optical microcavities, Dielectrics, Reflectivity, Mirrors, Refractive index, Reflection, Thin film devices, Interfaces, Thin films

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Proceedings Article | 20 January 2005 Paper

Auto-focusing and auto-alignment system for three-panel LCD projection display

Jun Liu, Haifeng Li, Xu Liu

Proceedings Volume 5633, (2005) https://doi.org/10.1117/12.570380

KEYWORDS: LCDs, Projection systems, Optical alignment, Charge-coupled devices, Manufacturing, Mathematical modeling, Image processing, Computing systems, LCD projection, Imaging systems

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Proceedings Article | 20 January 2005 Paper

CCD-based system for two-dimensional measurement of color uniformity of LCD projector

Ying Chen, Haifeng Li, Mo Shen, Xu Liu

Proceedings Volume 5633, (2005) https://doi.org/10.1117/12.575206

KEYWORDS: CCD cameras, Projection systems, Spectroscopy, LCDs, Calibration, Imaging systems, Spectral calibration, Liquid crystals, Charge-coupled devices, Sensors

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Proceedings Article | 18 January 2005 Paper

Instrumentation of fiber-based functional optical coherence tomographic imaging system

Xiaofeng Yu, Zhihua Ding, Yuheng Chen, Lina Huang, Lan Wu, Xu Liu

Proceedings Volume 5630, (2005) https://doi.org/10.1117/12.576770

KEYWORDS: Optical coherence tomography, Doppler tomography, Polarization, Imaging systems, Tissue optics, Tomography, Biomedical optics, Modulators, Coherence (optics), Functional imaging

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Proceedings Article | 17 January 2005 Paper

Angular characters of enhanced resonance in an active microcavity embedded in dielectric Bragg reflectors

Ligong Yang, Peifu Gu, Peng Wu, Yong Zhu, Hui Ye, Xu Liu

Proceedings Volume 5644, (2005) https://doi.org/10.1117/12.570884

KEYWORDS: Optical microcavities, Dielectrics, Mirrors, Reflectors, Resonance enhancement, Reflectivity, Quantum efficiency, Optoelectronic devices, Absorption, Phase shifts

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Proceedings Article | 12 January 2005 Paper

Data acquirement and remodeling on volumetric 3D emissive display system

Yi Yao, Xu Liu, Yuanfang Lin, Huangzhu Zhang, Xiaojie Zhang, Xiangdong Liu

Proceedings Volume 5632, (2005) https://doi.org/10.1117/12.575468

KEYWORDS: Light emitting diodes, 3D displays, 3D modeling, OpenGL, LED displays, Displays, Visualization, Data modeling, 3D image processing, Data acquisition

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Proceedings Article | 12 January 2005 Paper

Key factors in the design of a LED volumetric 3D display system

Yuanfang Lin, Xu Liu, Yi Yao, Xiaojie Zhang, Xiangdong Liu, Fengchun Lin

Proceedings Volume 5632, (2005) https://doi.org/10.1117/12.574165

KEYWORDS: Light emitting diodes, 3D displays, 3D image processing, LED displays, Visualization, Image quality, 3D volumetric displays, Image fusion, 3D vision

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Proceedings Article | 30 December 2004 Paper

Microfluid oscillator based on thermocapillarity

Teng-chao Huang, Yi-bing Shen, Xu Liu, Jian Bai, Xiyun Hou, Hui Ye, Di Lou

Proceedings Volume 5641, (2004) https://doi.org/10.1117/12.569524

KEYWORDS: Liquids, Diffusion, Silicon, Boron, Resistors, Actuators, Microfluidics, Semiconducting wafers, Glasses, Resistance

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Proceedings Article | 17 September 2002 Paper

Narrow emission from polyimide light-emitting diodes

Jianpu Wang, Xu Liu, Hui Ye, Shengang Xu, Yong Zhu, Mujie Yang

Proceedings Volume 4918, (2002) https://doi.org/10.1117/12.483040

KEYWORDS: Electroluminescence, Organic light emitting diodes, Aluminum, Light emitting diodes, Glasses, Polymers, Energy transfer, Polymer thin films, Molecular energy transfer, Annealing

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Proceedings Article | 23 August 2002 Paper

Optical interleaver based on multicavity Fabry-Perot thin film filter

Haixing Chen, Peifu Gu, Yueguang Zhang, Haifeng Li, Liu Xu

Proceedings Volume 4906, (2002) https://doi.org/10.1117/12.480550

KEYWORDS: Thin films, Electronic filtering, Fabry–Perot interferometers, Optical filters, Refractive index, Dense wavelength division multiplexing, Fused quartz, Lithium, Optical communications, Multiplexers

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Proceedings Article | 15 October 2001 Paper

Tunable F-P optical filter based on microcavity structure

Min Chen, Xu Liu, Haifeng Li

Proceedings Volume 4600, (2001) https://doi.org/10.1117/12.444670

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Proceedings Article | 3 October 2000 Paper

Discussion of optoelectronic HMDASS

Yu Liu, Xu Liu, Yi Yang, Longhe Sun, Hua Liu

Proceedings Volume 4220, (2000) https://doi.org/10.1117/12.401742

KEYWORDS: Head-mounted displays, Optoelectronics, Glasses, Plating, LCDs, Reflectivity, Modulation transfer functions, Reticles, Dichroic materials, Goggles

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Proceedings Article | 3 October 2000 Paper

Novel organic electroluminescent device using a new Eu3+ polymer as emitting laser

Jun Chen, Xu Liu, Xizhi Fan, Qidan Lin, Peifu Gu, Jinfa Tang

Proceedings Volume 4220, (2000) https://doi.org/10.1117/12.401727

KEYWORDS: Polymers, Electroluminescence, Luminescence, Aluminum, Europium, Electrodes, Electrons, Telescopic pixel displays, Solids, Vacuum deposition

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Proceedings Article | 20 May 1999 Paper

Improved projection optics for reflective silicon CMOS light valves

Hui-Feng Li, Zengrong Zheng, Peifu Gu, Liu Xu, Dennis Cheng, Jun Chen, Ho-Chi Huang, HoiSing Kwok

Proceedings Volume 3634, (1999) https://doi.org/10.1117/12.349350

KEYWORDS: Reflectivity, Projection systems, LCDs, Prisms, Light valves, Polarization, Silicon, Optical coatings, Optical design, Polarizers

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Proceedings Article | 18 August 1998 Paper

Compact LCD projector with high optical performance

Zengrong Zheng, Liu Xu, Peifu Gu, Haifeng Li, Anxi Xu, Yanping Zhang, Jinfa Tang

Proceedings Volume 3560, (1998) https://doi.org/10.1117/12.319693

KEYWORDS: LCDs, Projection systems, Transformers, Light sources, Lamps, Mirrors, Metals, Polarization, Light, Prisms

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Proceedings Article | 3 October 1996 Paper

Realization of parallel subtraction using LCLV in optical neural network

Bin Wang, Jianwen Yang, Xu Liu, Peifu Gu, Jinfa Tang, Yueguang Zhang

Proceedings Volume 2897, (1996) https://doi.org/10.1117/12.252943

KEYWORDS: Neural networks, Detector arrays, Diffraction gratings, Liquid crystals, Modulation, Computer programming, Superposition, Diffraction, Beam splitters, Light valves

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SPIE Journal Paper | 1 October 1996

Optical modified signed-digit addition module based on Boolean polarization-encoded logic algebra

Bin Wang, Feihong Yu, Xu Liu, Peifu Gu, Jinfa Tang

OE, Vol. 35, Issue 10, (October 1996) https://doi.org/10.1117/12.10.1117/1.600983

KEYWORDS: Transform theory, Logic, Polarization, LCDs, Logic devices, Polarizers, Optical engineering, Signal detection, Computer programming, Beam splitters

Proceedings Article | 4 November 1994 Paper

Optical-electric thin films produced by low voltage reactive plasma-assisted deposition

Xu Liu, Bin Wang, Peifu Gu, Jinfa Tang

Proceedings Volume 2253, (1994) https://doi.org/10.1117/12.192171

KEYWORDS: Plasma, Thin films, Oxygen, Resistance, Silicon, Refractive index, Transparent conducting films, Thin film deposition, Transmittance, Ions

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Proceedings Article | 4 November 1994 Paper

Applications of thin film techniques in liquid crystal light valve (LCLV) device

Xu Liu, Haifeng Li, Peifu Gu, Jinfa Tang

Proceedings Volume 2253, (1994) https://doi.org/10.1117/12.192161

KEYWORDS: Liquid crystals, Light valves, Thin films, Thin film devices, Dielectric mirrors, Reflectivity, Resistance, Optical properties, Geometrical optics, Molecules

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Proceedings Article | 1 February 1994 Paper

Development of an automatic spectrophotometer

Peiyun Wu, Peifu Gu, Xu Liu, Jinfa Tang

Proceedings Volume 1994, (1994) https://doi.org/10.1117/12.168212

KEYWORDS: Reflectivity, Spectrophotometry, Transmittance, Monochromators, Mirrors, Sensors, Beam splitters, Thin films, Zinc, Signal processing

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Proceedings Article | 25 November 1993 Paper

Some oxide films deposited by reactive low-voltage plasma-assisted evaporation

Xu Liu, Bin Wang, Gan Wang, Peifu Gu, Jinfa Tang

Proceedings Volume 2000, (1993) https://doi.org/10.1117/12.163657

KEYWORDS: Oxides, Plasma, Ions, Refractive index, Waveguides, Signal attenuation, Particles, Thin films, Argon, Electron beams

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Proceedings Article | 25 November 1993 Paper

Study of CdS/CdSe-LCLV for large screen displays

Haifeng Li, Peifu Gu, Xu Liu, Ting Mei, Jinfa Tang

Proceedings Volume 2000, (1993) https://doi.org/10.1117/12.163630

KEYWORDS: Liquid crystals, Photoresistors, Large screens, Switching, Dielectric mirrors, Light valves, Resistance, LCDs, Laminated object manufacturing, Light

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Proceedings Article | 12 November 1993 Paper

Antireflective coatings used for high-power CO2 laser

Peifu Gu, George Atanassov, Xu Liu, Jinfa Tang

Proceedings Volume 1997, (1993) https://doi.org/10.1117/12.163818

KEYWORDS: Absorption, Antireflective coatings, High power lasers, Gallium arsenide, Ions, Germanium, Heat flux, Thermal engineering, Optical coatings, Laser damage threshold

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Proceedings Article | 1 November 1993 Paper

Visible-to-infrared dynamic image-converting system with a liquid crystal light valve

Ting Mei, Monghua Xia, Peifu Gu, Dekang Zhao, Haifeng Li, Xu Liu, Jinfa Tang

Proceedings Volume 2020, (1993) https://doi.org/10.1117/12.160574

KEYWORDS: Infrared radiation, Liquid crystals, Infrared imaging, Light valves, Modulation transfer functions, Dynamical systems, Visible radiation, Infrared technology, Polarizers, Doping

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Proceedings Article | 1 December 1991 Paper

Analysis of thin-film losses from guided wave attenuations with photothermal deflection technique

Xu Liu, Jinfa Tang, Emile Pelletier

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.49493

KEYWORDS: Thin films, Signal attenuation, Scattering, Waveguides, Absorption, Refractive index, Wave propagation, Annealing, Speckle, Birefringence

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Proceedings Article | 1 December 1991 Paper

Study of TEM micrographs of thin-film cross-section replica using spectral analysis

Ting Mei, Xu Liu, Jinfa Tang, Peifu Gu

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.49494

KEYWORDS: Photomicroscopy, Transmission electron microscopy, Thin films, Speckle, Birefringence, Solids, Mechanics, Calibration, Transmittance, Signal to noise ratio

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Showing 5 of 79 publications

Proceedings Volume Editor (4)

SPIE Conference Volume | 28 March 2023

SPIE-CLP Conference on Advanced Photonics 2022

SPIE Conference Volume | 31 August 2017

14th Conference on Education and Training in Optics and Photonics: ETOP 2017

SPIE Conference Volume | 24 January 2012

Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging

SPIE Conference Volume | 11 January 2006

ICO20: Display Devices and Systems

Conference Committee Involvement (21)

Advanced Optical Imaging Technologies VIII

11 October 2025 | Beijing, China

Advanced Optical Imaging Technologies VII

12 October 2024 | Nantong, Jiangsu, China

Advances in Optical Thin Films VIII

8 April 2024 | Strasbourg, France

Advanced Optical Imaging Technologies VI

14 October 2023 | Beijing, China

Holography, Diffractive Optics, and Applications XII

5 December 2022 | Online Only, China

Advanced Optical Imaging Technologies V

5 December 2022 | Online Only, China

SPIE-CLP Conference on Advanced Photonics 2022

21 November 2022 | Online Only, China

Holography, Diffractive Optics, and Applications XI

10 October 2021 | Nantong, JS, China

Advanced Optical Imaging Technologies IV

10 October 2021 | Nantong, JS, China

Advances in Optical Thin Films VII

13 September 2021 | Online Only, Spain

Advanced Optical Imaging Technologies III

12 October 2020 | Online Only, China

Advanced Optical Imaging Technologies II

21 October 2019 | Hangzhou, China

Advanced Optical Imaging Technologies

12 October 2018 | Beijing, China

Advances in Optical Thin Films VI

14 May 2018 | Frankfurt, Germany

14th Conference on Education and Training in Optics and Photonics, ETOP 2017

28 May 2017 | Hangzhou, China

Photonics Asia

5 November 2012 | Beijing, China

Optoelectronic Sensing and Imaging

2 November 2011 | Wuhan, China

Advances in Optical Thin Films IV

5 September 2011 | Marseille, France

Advances in Optical Thin Films III

2 September 2008 | Glasgow, Scotland, United Kingdom

ICO20: Display Devices and Systems

21 August 2005 | Changchun, China

Symposium Organizing Chairs and Committee

14 October 2002 | Shanghai, China

Showing 5 of 21 Conference Committees

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