Prof. Zhenwu Lu Profile

Prof. Zhenwu Lu

at CIOMP

SPIE Involvement:

Author

Publications (27)

SPIE Journal Paper | 2 November 2015

Design of stray light suppressed digital micromirror device-based spectrometer with compound parabolic concentrator

Xiangqian Quan, Hua Liu, Zhenwu Lu, Yongqian Quan, Xiaoduo Wang, Xinrong Hu, Hetuo Chen, Xiangquan Tan, Heyang Bu

OE, Vol. 54, Issue 11, 115101, (November 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.11.115101

KEYWORDS: Digital micromirror devices, Compound parabolic concentrators, Stray light, Diffraction, Spectroscopy, Tolerancing, Micromirrors, Sensors, Energy efficiency, Solar concentrators

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SPIE Journal Paper | 16 December 2014

Diffraction analysis of digital micromirror device in maskless photolithography system

Zheng Xiong, Hua Liu, Xiangquan Tan, Zhenwu Lu, Cuixia Li, Liwei Song, Zhi Wang

JM3, Vol. 13, Issue 04, 043016, (December 2014) https://doi.org/10.1117/12.10.1117/1.JMM.13.4.043016

KEYWORDS: Diffraction, Digital micromirror devices, Micromirrors, Optical lithography, Optics manufacturing, Light sources, Diffraction gratings, Error analysis, Projection systems, Calibration

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Proceedings Article | 23 August 2013 Paper

Broadband infrared absorber based on plasmonic hybrid resonator

Qiuqun Liang, Dongliang Hao, Taisheng Wang, Zhenwu Lu, Qiang Sun, Weixing Yu

Proceedings Volume 8911, 89110L (2013) https://doi.org/10.1117/12.2034529

KEYWORDS: Plasmonics, Surface plasmons, Absorption, Metals, Dielectrics, Interfaces, Infrared radiation, Fabry–Perot interferometers, Resonators, Dielectric polarization

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Plasmonic resonances in metallic subwavelength structures have been widely exploited for a broad range of applications including nanoantennas, surface-enhanced Raman spectroscopy, chiral metamaterials, metamagnetism and absorbers. The phenomenon of extraordinary optical transmission (EOT) through subwavelength holes or slits based on the surface plasmon resonance is also extensively studied and has been applied for light harvesting. However, most of work about light harvesting devices suffer from many disadvantages such as narrow operating waveband, sensitive to the polarization state of the incident light, narrow accepting angles at a fixed azimuthal angle, which greatly limit their potential applications to spectroscopic detection and phase imaging. In this work, we present a broadband plasmonic resonant absorber in infrared regime. The plasmonic resonant absorber consists of a three-layer structure, i.e. two-dimensional metallic subwavelength hole arrays/dielectric-spacer/ thick metallic film from top to bottom. The designed plasmonic resonator is found to be polarization insensitive and omnidirectional due to the symmetry of the subwavelength hole array structure. The absorption efficiency of such absorber can be optimized by tuning the geometry of the metallic subwavelength structure and the thickness of the dielectric layer in between the two metallic films. The broadband efficient light absorbing property of the plasmonic resonant absorber can be explained by the synergetic effect of plasmonic resonance and Fabry-Perot (FP) resonance. It is shown that the periodic subwavelength metallic holes interact with the incident light to excite the surface plasmons so that the transmitted light intensity is significantly enhanced. The enhancement of the electric field near the metallic surface leads to an improved absorption. Moreover, FP cavity provides a resonant environment for the excited surface plasmons as well as the diffracted waves. As a result, the efficient light absorbing is achieved over a broad waveband. It should be noted that the proposed absorber can be applied to other working wavebands by carefully tuning the geometry of the metallic subwavelength structure and the thickness of the dielectric layer in between two metallic layers. The designed absorber may find important applications in solar cells, photodetectors, thermo-photovoltaic, and thermal emitters.

Proceedings Article | 19 August 2010 Paper

Design of compound Fresnel-R lenses for new high-efficient concentrator

Lei Jing, Hua Liu, Zhenwu Lu, Huifu Zhao

Proceedings Volume 7785, 77850K (2010) https://doi.org/10.1117/12.859441

KEYWORDS: Solar concentrators, Solar cells, Fresnel lenses, Optical design, Photovoltaics, Optics manufacturing, Lenses, Reflection, Refraction, Optical components

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Proceedings Article | 22 August 2009 Paper

Imaging analysis of a novel compound diffractive telescope system

Jinying Yue, Zhenwu Lu, Hua Liu, Wenbin Xu, Hongxin Zhang, Hu Zhang, Ying Liu

Proceedings Volume 7426, 74260Z (2009) https://doi.org/10.1117/12.823950

KEYWORDS: Telescopes, Diffraction, Modulation transfer functions, Imaging systems, Stars, Space telescopes, Optical instrument design, Diffractive optical elements, Optical design, Eye models

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Proceedings Article | 11 September 2008 Paper

Shape and alignment measurement of the heliostat by laser deflectometry

Wenbin Xu, Zhenwu Lu, Hua Liu, Hongxin Zhang, Zhengguo Ni

Proceedings Volume 7046, 70460J (2008) https://doi.org/10.1117/12.792960

KEYWORDS: Mirrors, Deflectometry, Software development, 3D scanning, Cobalt, Head, Error analysis, Laser development, Space mirrors, Solar energy

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Proceedings Article | 29 August 2008 Paper

Modeling diffractive optical elements in hybrid systems with the effect of the material dispersion

Hu Zhang, Hua Liu, Zhenwu Lu, Hongxin Zhang, Zhengguo Ni

Proceedings Volume 7060, 706015 (2008) https://doi.org/10.1117/12.794102

KEYWORDS: Diffractive optical elements, Systems modeling, Modulation transfer functions, Diffraction, Spatial frequencies, Optical components, Optical design software, Optical design, Zemax, Optical spheres

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Proceedings Article | 11 August 2008 Paper

Accurately measuring a surface by using a computer-generated hologram

Hua Liu, Zhenwu Lu, Honxin Zhang

Proceedings Volume 7064, 70640P (2008) https://doi.org/10.1117/12.793597

KEYWORDS: Computer generated holography, Optical spheres, Spherical lenses, Error analysis, Photoresist materials, Holograms, Lutetium, Interferometers, Aspheric lenses, Wavefronts

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Proceedings Article | 15 January 2008 Paper

Optimization procedure for design of heliostat field layout of a 1MWe solar tower thermal power plant

Xiudong Wei, Zhenwu Lu, Zi Lin, Hongxin Zhang, Zhengguo Ni

Proceedings Volume 6841, 684119 (2008) https://doi.org/10.1117/12.755285

KEYWORDS: Receivers, Mirrors, Sun, Optimization (mathematics), Ray tracing, Mirror pointing, Geometrical optics, Solar energy, Visualization, Zirconium

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Proceedings Article | 5 September 2006 Paper

Compound telescope

Zhenwu Lu, Nan Zhang, Hua Liu, Fengyou Li, Qiang Sun

Proceedings Volume 6289, 628910 (2006) https://doi.org/10.1117/12.679255

KEYWORDS: Space telescopes, Telescopes, Objectives, Tolerancing, Image quality, Modulation transfer functions, Eye models, Optical instrument design, Astronomical imaging, Temperature metrology

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Proceedings Article | 10 January 2005 Paper

The geometric distortions correction of uncooled large-sized relative aperture infrared imaging system

Xintian Fan, Qiang Sun, Zhenwu Lu

Proceedings Volume 5640, (2005) https://doi.org/10.1117/12.576238

KEYWORDS: Infrared imaging, Imaging systems, Thermography, Infrared radiation, Image interpolation, Digital image processing, Geometrical optics, Mathematical modeling, Data acquisition boards, Fluctuations and noise

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Proceedings Article | 19 November 2003 Paper

The analysis of line profile in laser direct writing process

Yongjun Xie, Zhenwu Lu, Fengyou Li, Zhicheng Weng

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.527606

KEYWORDS: Photoresist materials, Error analysis, Laser processing, Binary data, Optical components, Photoresist developing, Lithography, Computer simulations, Laser optics, Laser systems engineering

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Proceedings Article | 20 September 2002 Paper

Hybrid diffractive-refractive head-mounted display with reflective relay system using micro-liquid-cyrstal on silicon

Huijue Zhang, Zhaoqi Wang, Qiuling Zhao, Fengyou Li, Yongjun Xie, Bo Chen, Zhenwu Lu

Proceedings Volume 4927, (2002) https://doi.org/10.1117/12.471711

KEYWORDS: Head-mounted displays, Liquid crystal on silicon, Relays, Eye, Reflectivity, Charged particle optics, Mirrors, Monochromatic aberrations, Distortion, Lens design

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Proceedings Article | 20 September 2002 Paper

Polar-coordinate laser writer: analysis of exposure dose distribution

Yongjun Xie, Zhenwu Lu, Fengyou Li, Zhicheng Weng

Proceedings Volume 4927, (2002) https://doi.org/10.1117/12.464067

KEYWORDS: Photoresist materials, Laser systems engineering, Photoresist developing, Error analysis, Lithography, Diffractive optical elements, Numerical analysis, Atomic force microscopy, Lutetium, Lithium

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Proceedings Article | 20 September 2002 Paper

Application of harmonic diffraction in infrared

Qiang Sun, Zhaoqi Wang, Wei Quan, Fengyou Li, Yongjun Xie, Zhenwu Lu, Bo Chen

Proceedings Volume 4927, (2002) https://doi.org/10.1117/12.471678

KEYWORDS: Infrared radiation, Diffraction, Infrared imaging, Optical design, Thermography, Optical components, Chromatic aberrations, Wavefronts, Mid-IR, Modulation transfer functions

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Proceedings Article | 25 October 2000 Paper

Nearly diffraction-limited size flat-top laser beam shaper

Fengyou Li, Zhenwu Lu, Hongjun Li, Jianghong Liao

Proceedings Volume 4095, (2000) https://doi.org/10.1117/12.405263

KEYWORDS: Diffractive optical elements, Diffraction, Gaussian beams, Energy efficiency, Beam shaping, Optical design, Fourier transforms, Photomasks, Lithium, Laser scanners

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Proceedings Article | 24 October 2000 Paper

Lens centering by using binary phase grating

Zhenwu Lu, Zhicheng Weng

Proceedings Volume 4093, (2000) https://doi.org/10.1117/12.405248

KEYWORDS: Diffraction gratings, Binary data, Mirrors, Diffraction, Spindles, Beam splitters, CCD cameras, Interferometers, Doppler effect, Telescopes

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Proceedings Article | 5 October 2000 Paper

Effective medium theory for designing binary circular subwavelength diffractive optical elements

Caihua Chen, Zhenwu Lu, Baochang Zhao

Proceedings Volume 4223, (2000) https://doi.org/10.1117/12.401766

KEYWORDS: Binary data, Diffractive optical elements, Optical design, Diffraction, Finite-difference time-domain method, Optical components, Refractive index, System on a chip, Mechanics, Structural design

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Proceedings Article | 21 September 1998 Paper

Lightweight remote-sensing CCD camera with binary optical element

Zhicheng Weng, Zhenwu Lu, Xin Zhang

Proceedings Volume 3482, (1998) https://doi.org/10.1117/12.322065

KEYWORDS: Modulation transfer functions, Diffraction, Point spread functions, CCD cameras, Image quality, Glasses, Imaging systems, Optical components, Image processing, Diffractive optical elements

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Proceedings Article | 7 August 1998 Paper

Preliminary study on weight reduction of obesity Patients with semiconductor laser acupuncture

Chun Cao, Jannan Wang, Jianghong Liao, Jinghe Zhang, Yongfan Qiao, Jindong Liu, Jun-Qi Liu, Zhenwu Lu

Proceedings Volume 3548, (1998) https://doi.org/10.1117/12.317885

KEYWORDS: Semiconductor lasers, Blood, Medicine, Diagnostics, Standards development, Mechanics, Heart, Ultrasonography, Liver, Skin

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Proceedings Article | 5 August 1998 Paper

Analysis of errors and calibration method for manufacturing multilevel diffractive optical element by ion etching

Yongqi Fu, Zhenwu Lu, Yueying Ma, Zhicheng Weng

Proceedings Volume 3557, (1998) https://doi.org/10.1117/12.318298

KEYWORDS: Diffractive optical elements, Manufacturing, Etching, Error analysis, Optical alignment, Moire patterns, Optics manufacturing, Ions, Photomasks, Diffraction

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Proceedings Article | 1 September 1996 Paper

Design of quasioptical diffractive millimeter wave antenna

Zhenwu Lu

Proceedings Volume 2778, 277827 (1996) https://doi.org/10.1117/12.2298961

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Proceedings Article | 25 November 1993 Paper

Effect of fabrication errors on binary phase grating

Zhenwu Lu, Longsheng Qian, Jianghong Liao, Zhicheng Weng

Proceedings Volume 2000, (1993) https://doi.org/10.1117/12.163658

KEYWORDS: Diffraction gratings, Binary data, Diffraction, Optical design, Error analysis, Optical lithography, Etching, Phase shift keying, Optical signal processing, Neural networks

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Proceedings Article | 20 October 1992 Paper

Heterodyne common-path interferometer for testing surface roughness

Changyuan Han, Bin Liu, Zhenwu Lu, Quwu Gu

Proceedings Volume 1720, (1992) https://doi.org/10.1117/12.132149

KEYWORDS: Interferometers, Beam splitters, Heterodyning, Signal detection, Surface roughness, Optical testing, Photodetectors, Mirrors, Laser stabilization, Wave plates

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Proceedings Article | 24 August 1992 Paper

Architecture of new adaptive optical processor

Zhao-Heng Weng, DeGui Sun, Zhenwu Lu, Na-Xin Wang

Proceedings Volume 1704, (1992) https://doi.org/10.1117/12.139902

KEYWORDS: Adaptive optics, Network architectures, Neural networks, Joint transforms, Optical interconnects, Sun, Lutetium, Sodium, Mechanics, Toxic industrial chemicals

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Proceedings Article | 24 August 1992 Paper

Butterfly interconnections and networks and their applications in intelligent optical computings

DeGui Sun, Na-Xin Wang, Zhao-Heng Weng, Zhenwu Lu

Proceedings Volume 1704, (1992) https://doi.org/10.1117/12.139916

KEYWORDS: Fourier transforms, Optical computing, Target recognition, Joint transforms, Optical tracking, Image processing, Adaptive optics, Optical interconnects, Fluctuations and noise, Optical components

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Proceedings Article | 1 December 1991 Paper

Moire pattern and interferogram transform

Zhenwu Lu

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.57422

KEYWORDS: Moire patterns, Fringe analysis, Holographic interferometry, Mechanics, Zone plates, Wavefronts, Spatial frequencies, Transform theory, Nondestructive evaluation, Superposition

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Showing 5 of 27 publications

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