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Liang, Chao-Wen Associate Professor
+886-3-4227151 ext 65250

After got the Optical sciences' Ph.D. in University of Arizona, I came back to Taiwan and teaching in National Central University. Devote to ashpere and optical testing, also have some researches in multi-field imaging and non-imaging optics. Furthermore, I'm the journal reviewer of Applied Optics, Optics Express...etc, also was the journal editor of special issue of Applied Optics in Optical Design and Testing. Keeping track in the development of optics and contribute to promotion and verification of research quality. Besides, we have some research projects and patents, and transfer the patents to companies successfully. Make the researches not only the researches but a real application. Hope the optics and its applications doing more benefits to the world, make the future being more convenient and friendly.

Ph.D. College of Optical Sciences , University of Arizona, U.S.A

Work Experience
2006.08 ~ Now. Assistant Professor in National Central University
Research Interests

Optical Testing, Optical System Design, Diffractive Element Design, Opto-Mechanical Engineering

Research Groups Display TechnologyOptical Engineering and DesignSolar Cells

Current Research Areas

Currently our lab research is focused on the optical engineering field. This includes the optical testing and optical imaging applications. In the optical testing research field, we have researches on the focal plane testing method, aspherical surface testing method, instantaneous interferometry, full field aberration measurement. Now combining novel Extended Depth of Field Imaging and Light Field Imaging method, the research topics are changing toward the application of novel imaging methods.

  • Best Paper Award, “The Fizeau Coordinate of Subaperture Stitching Error”, Po-Chih Lin, Hung-Sheng Chang, Chao-Wen Liang, and Yi-Chun Chen, National Central University, 2013 OPTIC conference, Taiwan
  • Journal Editor, Special Issue of Applied Optics in Optical Design and Testing, OSA, 2013
  • Conference Co-Chair of the Conference category in Optical Design and Testing, OPTIC 2013, Taiwan, 2013
  • Research Project Review Committee, Technology Development Program of the Ministry of Economic Affairs, Taiwan 2013
  • Session Chair & Program Committee, Optical tolerance and alignment, Optics and Photonics, International Society for Optical Engineering (SPIE), 2008~2013
  • Program committee of International Conference on Optics-photonics Design & Fabrication Optical Design and Fabrication conference, Optical Society of Japan, 2008 2010 2012 2014
  • Scholarship Committee Member, International Society for Optical Engineering 2010~2011
  • Session Chair of Optical engineering and thin film, Optics and Photonics Taiwan conference, 2006~2012
  • Journal Reviewer of Applied Optics, Optics Express, Optics Letter, Optical Engineering
Selected Publications
Journal Papers
 No. Title
1 Chao-Wen Liang, Hung-Sheng Chang, Po-Chih Lin, Cheng-Chung Lee, and Yi-Chun Chen, "Vibration modulated subaperture stitching interferometry," Opt. Express 21, 18255-18260 (2013)
2 Yi-Chun Chen, Po-Chih Lin, Chung-Min Lee, and Chao-Wen Liang, “Iterative phase-shifting algorithm immune to random phase shifts and tilts,” Appl. Opt. 52, 3381-3386 (2013)
3 Te-Yuan Chung, Cheng-Yeh Chiang, and Chao-Wen Liang, “Volume Bragg Grating-Based 70 nm Tunable and Narrow Output Spectra from a Ti:sapphire Laser,” Jpn. J. Appl. Phys. 50 (2011)
4 Chao-Wen Liang, Chien-Fu Ou, and Jose Sasian, "Phase shifting grating-slit test with a cross slit," Opt. Lett. 35, 496-498 (2010)
5 Chao-Wen Liang, and Chien-Fu Ou, “Phase shifting grating-slit test utilizing a liquid crystal display,” Opt. Rev. 16, 476-478 (2009)
Type of Application Title Nation Inventor(s) Patent (Application) Number/Term of Patent
Image Exposure Supressed Optical System USA Chao-Wen Liang , Jhe-Syuan Lin , Ming-Fang Lau

Optical Device for Coupling to a Camera Lens to Form a Visual Observation System USA Chao-Wen Liang

Surface Profile Measurement Apparatus and Alignment Method Thereof and an Improved Sub-aperture Measurement Data Acquisition Method USA Chao-Wen Liang
Solar Concentrator USA Chao-Wen Liang
Linear Displacement and Lateral Tilt Measuring interferometer USA Chao-Wen Liang
Research Projects
Position Project Project Duration Funding Agent Grant (NT$)
Wavelength-Multiplexing Nano-Structural Thin Film Using Symmetric Autocloning Technology
2013-08-01 - 2014-07-31 National Science Council 998,800
Application of Multifield Aberration Measurement on Precision Opto-Mechanical Alignment and Light Field Imaging
2012-08-01 - 2013-07-31 National Science Council 995,000
Sub-project Leader
High Speed and High Na Asphere Interferometer: Design, Development, and Applications(III)
2011-08-01 - 2012-07-31 National Science Council 3,750,000
High Resolution , Aberration Free Light Field Imaging
2011-01-01 - 2012-06-30 National Science Council 650,000
Development of Multifunction Integrated Optical Circuit (Mioc) for Fiber-Optic Gyroscope Application
2011-01-01 - 2012-06-30 National Science Council 3,788,000
Optical Element Testing Laboratory
Computational Optics Imaging Laboratory
Precision Optics Fabrication Laboratory


Address: Kwoh-Ting Optics and Photonics Building, No. 300, Zhongda Rd., Zhongli District, Taoyuan City, Taiwan (R.O.C.)
TEL: +886-3-4227151 ext. 65251FAX: 886-3-4252897Email:ncu5251@ncu.edu.tw
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