Photo of Zhiwen Liu

Zhiwen Liu

Professor

Affiliation(s):

  • School of Electrical Engineering and Computer Science
  • Electrical Engineering

314 Electrical Engineering East

zliu@psu.edu

814-865-2362

Personal or Departmental Website

Research Areas:

Interest Areas:

Ultrafast optics, imaging, holography

 
 

 

Education

  • Ph D, Electrical Engineering, California Institute of Technology, 2002

Publications

Books

  • Zhiwen Liu, 2016, Ultrafast Nonlinear Imaging and Spectroscopy IV, SPIE Press
  • Zhiwen Liu, 2015, Ultrafast Nonlinear Imaging and Spectroscopy III, SPIE Press
  • Zhiwen Liu, 2013, Ultrafast Imaging and Spectroscopy, SPIE Press

Book, Chapters

  • Zhiwen Liu, Martin Centurion, Greg Steckman, Ye Pu and Demetri Psaltis, 2006, Ultrafast Holography

Journal Articles

  • C Zhang, V Bucklew, P Edwards, C Janisch and Z Liu, 2017, "Divided pulse soliton self-frequency shift: a multi-color, dual-polarization, power-scalable, broadly tunable optical source", Optics Letters 42(3), 502-505 (2017).
  • C Janisch, H Song, C Zhou, Z Lin, A L Elias, D Ji, M Terrones, Q Gan and Z Liu, 2016, "MoS2 monolayers on nanocavities: enhancement in light–matter interaction", 2D Materials 3, no. 2 (2016): 025017.
  • Z Tao, X Zhang, M Chen, Z Liu, C Zhu, Z Liu and J Chen, 2016, "Cs 728 nm excited state Faraday anomalous dispersion optical filter with indirect pump", Physics Letters A 380, no. 25 (2016): 2150-2153.
  • J Kim, Z Xie, M Creer, Z Liu and J Yang, 2016, "Citrate-based fluorescent materials for low-cost chloride sensing in the diagnosis of cystic fibrosis", Chemical Science
  • L Xu, X Jiang, G Zhao, D Ma, H Tao, Z Liu, F G Omenetto and L Yang, 2016, "High-Q silk fibroin whispering gallery microresonator", Optics Express 24, no. 18 (2016): 20825-20830.
  • N Mehta, A S Cocking, C Zhang, D Ma, Y Xu and Z Liu, 2016, "Development of opto-electronic fiber device with multiple nano-probes", Nanotechnology 27, no. 44 (2016): 445204.
  • X Xue, C Janisch, Y Chen, Z Liu and J Chen, 2016, "Low-frequency shift Raman spectroscopy using atomic filters", Optics Letters 41, no. 22 (2016): 5397-5400.
  • L Lin, Z Jiang, D Ma, S Yun, Z Liu, D Werner and T Mayer, 2016, "Dielectric nanoresonator based lossless optical perfect magnetic mirror with near-zero reflection phase", Applied Physics Letters 108, no. 17 (2016): 171902.
  • C Zhang, G Cheng, P Edwards, M Zhou, S Zheng and Z Liu, 2016, "G-Fresnel Smartphone Spectrometer", Lab on a Chip 16, no. 2 (2016): 246-250.
  • A Cocking, N Mehta, K Shi and Z Liu, 2015, "Compressive coherent anti-Stokes Raman scattering holography", Optics Express
  • J Ribeiro-Soares, C Janisch, Zhiwen Liu, A L Elías, M S Dresselhaus, M Terrones, L G Cançado and A Jorio, 2015, "Second Harmonic Generation in WSe 2", 2D Materials, 2, (4), pp. 045015
  • S. Yun, Z. Jiang, D. Ma, Zhiwen Liu, D. H. Werner and T. S. Mayer, 2013, "Experimental verification of substrate-induced bianisotropy in optical metamaterials", Applied Physics Letters, 103, (233109)
  • P. Deng, M. Kavehrad, Zhiwen Liu, Z. Zhou and X. Yuan, 2013, "Capacity of MIMO free space optical communications using multiple partially coherent beams propagation through non-Kolmogorov strong turbulence", Optics Express, 21, (15213)
  • M. Krishnamurthi, J. R. Sparks, R. He, I. A. Temnykh, N. F. Baril, Zhiwen Liu, P. J. A. Sazio, J. V. Badding and V. Gopalan, 2012, "Array of tapered semiconductor waveguides in a fiber for infrared image transfer and magnification", Opt. Express, 20, pp. 4168-4175
  • M. Zhou, C. Yang, Zhiwen Liu, J. P. Cysk and S. Zheng, 2012, "An implantable Fabry-Pérot pressure sensor fabricated on left ventricular assist device for heart failure", Biomedical Microdevices, 14, pp. 235-245
  • S. Yun, Z. Jiang, Q. Xu, Zhiwen Liu, D. H. Werner and T. S. Mayer, 2012, "Low-Loss Impedance-Matched Optical Metamaterials with Zero Phase Delay", ACS Nano, 6, (5), pp. 4475-4482
  • K. Shi, P. S. Edwards, J. Hu, Q. Xu, Y. Wang, D. Psaltis and Zhiwen Liu, 2012, "Holographic coherent anti-Stokes Raman scattering bio-imaging", Biomed. Opt. Express, 3, pp. 1744-1749
  • P. S. Edwards, N. Mehta, K. Shi, Q. Xu, D. Psaltis and Zhiwen Liu, 2012, "Coherent Anti-Stokes Raman Scattering Holography: Theory and Experiment", Journal of Nonlinear Optical Physics & Materials, 21, (2)
  • H. Li, D. Ma, C. Yang, Y. Xu and Zhiwen Liu, 2012, "Incorporating conductive materials into a photonic crystal fiber: toward optoelectronic applications", Optics Express, 20, (22), pp. 24342-24347
  • Q. Sun, Y. Hong, W. Zhuang, Zhiwen Liu and J. Chen, 2012, "Demonstration of an excited-state Faraday anomalous dispersion optical filter at 1529 nm by use of an electrodeless discharge rubidium vapor lamp", Appl. Phys. Lett., 101, pp. 211102
  • N. Mehta, J. Chen, Z. Zhang and Zhiwen Liu, 2012, "Compressive multi-heterodyne optical spectroscopy", Opt. Express, 20, pp. 28363-28372
  • C. Yang, K. Shi, M. Zhou, S. Zheng, S. Yin and Zhiwen Liu, 2012, "Z-microscopy for parallel axial imaging with micro mirror array", Appl. Phys. Lett., 101, pp. 231111
  • H. Li, P. S. Edwards, Z. Zhang, B. Zhang, Y. Xu, V. Gopalan and Zhiwen Liu, 2011, "Characterization of the second-harmonic response of second-order nonlinear probes", Journal of the Optical Society of America B, 28, pp. 2844-2847
  • Q. Sun, W. Zhuang, Zhiwen Liu and J. Chen, 2011, "Electrodeless-discharge-vapor-lamp-based Faraday anomalous-dispersion optical filter", Opt. Lett., 36, pp. 4611-4613
  • W. Zhuang, D. Yu, Zhiwen Liu and J. Chen, 2011, "Multi-threshold second-order phase transition in laser", Chinese Science Bulletin, 56, pp. 3812-3816
  • H. Li, Q. Zhang and Zhiwen Liu, 2011, "Holographic Imaging of Electric Breakdown in Air", IEEE Transactions on Dielectrics and Electrical Insulation, 18, pp. 819-821
  • Q. Xu, K. Shi and Zhiwen Liu, 2011, "Time-resolved coherent anti-Stokes Raman spectroscopy impulsively excited by supercontinuum", Journal of Raman Spectroscopy, 42
  • C. Yang, P. Edwards, K. Shi and Zhiwen Liu, 2011, "Proposal and demonstration of a spectrometer using a diffractive optical element with dual dispersion and focusing functionality", Opt. Lett., 36, pp. 2023-2025
  • C. Daengngam, M. Hofmann, Zhiwen Liu, A. Wang, J. R. Heflin and Y. Xu, 2011, "Demonstration of a cylindrically symmetric second-order nonlinear fiber with self-assembled organic surface layers", Opt. Express, 19, pp. 10326-10335
  • H. Li, Z. Zhang, Q. Xu, K. Shi, Y. Jia, B. Zhang, Y. Xu and Zhiwen Liu, 2010, "Characterizing ultrashort optical pulses using second-order nonlinear nanoprobes", Appl. Phys. Lett., 97, pp. 261108
  • C. Yang, K. Shi, P. Edwards and Zhiwen Liu, 2010, "Demonstration of a PDMS based hybrid grating and Fresnel lens (G-Fresnel) device", Opt. Express, 18, pp. 23529-23534
  • C. Yang, K. Shi, H. Li, Q. Xu, V. Gopalan and Zhiwen Liu, 2010, "Chromatic second harmonic imaging", Opt. Express, 18, pp. 23837-23843
  • Z. Zhang, H. Li, P. Li, K. Shi, P. Edwards, F. Omenetto, M. Cronin-Golomb, G. Zhang and Zhiwen Liu, 2010, "Supercontinuum trap stiffness measurement using a confocal approach", Opt. Express, 18, pp. 26499-26504
  • H. Li, Y. Jia, Q. Xu, K. Shi, J. Wu, P. C. Eklund, Y. Xu and Zhiwen Liu, 2010, "Development of a nonlinear nanoprobe for interferometric autocorrelation based characterization of ultrashort optical pulses", Appl. Phys. Lett., 96, pp. 021103
  • I. A. Temnykh, N. F. Baril, Zhiwen Liu, J. V. Badding and V. Gopalan, 2010, "Optical multistability in a silicon-core silica-cladding fiber", Opt. Express, 18, pp. 5305-5313
  • K. Shi, H. Li, Q. Xu, D. Psaltis and Zhiwen Liu, 2010, "Coherent Anti-Stokes Raman Holography for Chemically Selective Single-Shot Nonscanning 3D Imaging", Phys. Rev. Lett., 104, pp. 093902
  • Q. Xu, K. Shi, H. Li, K. Choi, R. Horisaki, D. Brady, D. Psaltis and Zhiwen Liu, 2010, "Inline holographic coherent anti-Stokes Raman microscopy", Optics Express, 18, pp. 8213-8219
  • Y. Jia, H. Li, B. Zhang, X. Wei, Z. Zhang, Zhiwen Liu and Y. Xu, 2010, "Development of functional nanoprobes for optical near field characterization", Journal of Physics: Condensed Matter, 22, pp. 334218
  • J. Zheng, S. Yin, Zhiwen Liu, J. Yao, J. H. Kim and C. Yang, 2009, "Large refractive index modulation tilted holographic planar structured grating based on dichromated gelatin", Optics Communications, 282, pp. 1762-1766
  • Q. Xu, K. Shi, S. Yin and Zhiwen Liu, 2009, "Chromatic two-photon excitation fluorescence imaging", Journal of Microscopy, 235, pp. 79-83
  • M. Krishnamurthi, P. Li, A. Singh, J. G. Thomas, T. M. Lehecka, Zhiwen Liu and V. Gopalan, 2009, "Electro-optic laser beam shaping by patterned ferroelectric domains", App. Phys. Lett., 95, pp. 202902
  • M. O. Ramirez, J. Wisdom, H. Li, Y. L. Aung, J. Stitt, G. L. Messing, V. Dierolf, Zhiwen Liu, A. Ikesue, R. L. Byer and V. Gopalan, 2008, "Three-dimensional grain boundary spectroscopy in transparent high power ceramic laser materials", Optics Express, 16, pp. 5965-5973
  • Y. Xu, M. Han, A. Wang, Zhiwen Liu and J. R. Heflin, 2008, "Second Order Parametric Processes in Nonlinear Silica Microspheres", Physics Review Letters, 100, pp. 163905
  • K. Shi and Zhiwen Liu, 2008, "Spectrally smoothed supercontinuum generation by using unstably mode-locked laser pulses", Applied Physics Letters, 92, pp. 131102
  • J. H. Kim, M. Chen, C. Yang, J. Lee, K. Shi, Zhiwen Liu, S. Yin, K. Reichard, P. Ruffin, E. Edwards, C. Brantley and C. Luo, 2008, "Broadband supercontinuum generation covering UV to mid-IR region by using three pumping sources in single crystal sapphire fiber", Optics Express, 16, pp. 14792-14800
  • D. M. Brown, K. Shi, Zhiwen Liu and C. R. Philbrick, 2008, "Long-path supercontinuum absorption spectroscopy for measurement of atmospheric constituents", Optics Express, 16, pp. 8457-8471
  • K. Shi, P. Li and Zhiwen Liu, 2007, "Broadband coherent anti-Stokes Raman scattering spectroscopy in supercontinuum optical trap", Applied Physics Letters, 90, pp. 141116-1 to 141116-3
  • M. E. Staymates, G. S. Settle, K. Shi and Zhiwen Liu, 2007, "Supercontinuum laser illumination applied to traditional optical flow imaging methods", Optics Communications, 273, pp. 252-255
  • Y. Xu, A. Wang, J. R. Heflin and Zhiwen Liu, 2007, "Proposal and analysis of a silica fiber with large and thermodynamically stable second order nonlinearity", Applied Physics Letters, 90, pp. 211110-1 to 211113
  • K. Shi, P. Li and Zhiwen Liu, 2007, "Supercontinuum CARS Tweezers", Journal of Nonlinear Optical Physics and Materials, 16, pp. 457-470
  • F. Wu, X. Zhang, J. Cheung, K. Shi, Zhiwen Liu, C. Luo, S. Yin and P. Ruffin, 2006, "Frequency division multiplexed multi-channel high speed fluorescence confocal microscope", Biophysical Journal, 91, pp. 2290-2296
  • K. Shi, S. Yin and Zhiwen Liu, 2006, "Wavelength division scanning for two-photon excitation fluorescence imaging", Journal of Microscopy, 223, pp. 83-87
  • K. Shi, S. Nam, P. Li, S. Yin and Zhiwen Liu, 2006, "Wavelength division multiplexed confocal microscopy using supercontinuum", Optics Communications, 263, pp. 156-162
  • K. Shi, F. G. Omenetto and Zhiwen Liu, 2006, "Supercontinuum generation in an imaging fiber taper", Optics Express, 14, pp. 12359-12364
  • P. Li, K. Shi and Zhiwen Liu, 2005, "Optical scattering spectroscopy by using tightly focused supercontinuum", Optics Express, 13, pp. 9039-9044
  • W. Su, K. Shi, Zhiwen Liu, B. Wang, K. Reichard and S. Yin, 2005, "A large-depth-of-field projected fringe profilometry using supercontinuum light illumination", Optics Express, 13, pp. 1025-1032
  • P. Li, K. Shi and Zhiwen Liu, 2005, "Manipulation and spectroscopy of a single particle by use of white-light optical tweezers", Optics Letters, 30, pp. 156-158
  • Y. Yang, K. Chung, S. Yin, Zhiwen Liu and Q. Wang, 2004, "Analysis of volume holographic long period gratings in photonic nanostructured fibers and waveguides", Optical Engineering, 43, pp. 2003-2008
  • K. Shi, P. Li, S. Yin and Zhiwen Liu, 2004, "Chromatic confocal microscopy using supercontinuum light", Optics Express, 12, pp. 2096-2101
  • M. Centurion, Y. Pu, Zhiwen Liu, D. Psaltis and T. W. Hansch, 2004, "Holographic recording of laser-induced plasma", Optics Letters, 29, pp. 772-774
  • Zhiwen Liu, G. J. Steckman and D. Psaltis, 2003, "Design of a nanosecond holographic recording system", Optical Memory and Neural Networks (Information Optics), 12, pp. 19-25
  • R. S. Pandher, A. A. Gorokhovsky, Zhiwen Liu, I. V. Solomatin and D. Psaltis, 2002, "Spectroscopy, persistent hole-burning, and holographic applications of naphtophthalocyanine/haloanthracene systems", Journal of luminescence, 98, pp. 207-212
  • Zhiwen Liu, G. J. Steckman and D. Psaltis, 2002, "Holographic recording of fast phenomena", Applied Physics Letters, 80, pp. 731-733
  • Zhiwen Liu, M. Centurion, G. Panotopoulos, J. Hong and D. Psaltis, 2002, "Holographic recording of fast events on a CCD camera", Optics Letters, 27, pp. 22-24

Conference Proceedings

  • C Janisch, A Cocking, L Yang and Z Liu, 2015, "Raman sensing in microresonators", SPIE Optical Engineering+ Applications, pp. 95840O-95840O. International Society for Optics and Photonics, 2015
  • N. Mehta and Zhiwen Liu, 2013, "CMOS: a compressive sensing based template for high-resolution multi-heterodyne optical spectroscopy", Proceedings of SPIE, 8485
  • P. S. Edwards, C. Janisch, B. Peng, S. K. Ozdemir, L. Yang and Zhiwen Liu, 2013, "Raman spectroscopic sensing using whispering gallery microresonators", Proceedings of SPIE, 8845
  • J. Ouyang, C. Yang, D. Niu, Y. Xie and Zhiwen Liu, 2011, "F2BFLY: an on-chip free-space optical network with wavelength-switching", Proceedings of the International Conference on Supercomputing 2011, pp. 348-358

Instructor's Manuals

Manuscripts

  • Corey Janisch, Nikhil Mehta, Ding Ma, Ana Laura Elías, Néstor Perea-López, Mauricio Terrones and Zhiwen Liu, , "Ultrashort optical pulse characterization using WS2 monolayers", Opt. Lett., 39, pp. 383-385

Other

  • S. Yun, L. Lin, Z. Jiang, D. Ma, Zhiwen Liu, D. H. Werner and T. S. Mayer, 2012, "Flexible zero refractive index optical metamaterial with matched impedance", 8455, pp. 84551Q
  • Q. Sun, Y. Hong, X. Xue, Z. Tao, W. Zhuang, J. Chen and Zhiwen Liu, 2012, "Electrodeless-discharge-vapor-lamp-based optical atomic filter", pp. 1-4
  • C. Yang, P. S. Edwards, K. Shi and Zhiwen Liu, 2012, "A compact optical spectrometer based on a single-grating Fresnel diffractive optical element", 8374, pp. 83740Y
  • Z. Jiang, S. Yun, D. Ma, P. Gorman, D. H. Werner, Zhiwen Liu and T. S. Mayer, 2012, "Experimental verification of substrate-induced bianisotropy in optical metamaterials", pp. 1-2
  • M. D. Zhou, C. Yang, Zhiwen Liu, J. P. Cysyk and S. Y. Zheng, 2011, "A Fabry-Pérot pressure sensor fabricated on left ventricular assist device for heart failure implant", pp. 1232-1235
  • Z. H. Jiang, S. Yun, Q. Xu, D. H. Werner, Zhiwen Liu and T. S. Mayer, 2011, "Experimental verification of a zero-index near-infrared metamaterial", pp. 1181-1184
  • S. Yun, Z. Jiang, Q. Xu, J. A. Bossard, D. H. Werner, Zhiwen Liu and T. S. Mayer, 2010, "Multilayer near-IR metallo-dielectric zero index metamaterials with matched impedance", pp. 77540G
  • Q. Xu, K. Shi and Zhiwen Liu, 2010, "Femtosecond optical Kerr gating using nonlinear photonic crystal fiber", pp. 77751E
  • P. S. Edwards, A. M. Wyant, D. M. Brown, Zhiwen Liu and C. R. Philbrick, 2009, "Supercontinuum Laser Sensing of Atmospheric Constituents", 7323, pp. 8
  • C. R. Philbrick, D. M. Brown, A. H. Willitsford, P. S. Edwards, A. M. Wyant, Zhiwen Liu, C. T. Chadwick and H. Hallen, 2009, "Remote Sensing of Chemical Species in the Atmosphere"
  • D. M. Brown, Zhiwen Liu and C. R. Philbrick, 2008, "Supercontinuum Lidar Applications for Measurements of Atmospheric Constituents", 6950, pp. 11
  • P. Li, K. Shi and Zhiwen Liu, 2006, "Single-particle optical scattering spectroscopy in white light supercontinuum optical tweezers", 6356, pp. 63261H
  • D. M. Brown, A. Willitsford, K. Shi, Zhiwen Liu and C. R. Philbrick, 2006, "Advanced Optical Techniques for Measurements of Atmospehric Constituents"
  • F. Wu, K. Shi, Zhiwen Liu, X. Zhang, J. Cheung, K. Reichard and S. Yin, 2005, "3D method via time and spatially multiplexed confocal microscope", 6000B
  • W. Su, Zhiwen Liu, K. Shi, K. Reichard and S. Yin, 2005, "Integration of segmented 3D image data measured by projected fringe profilometry using supercontinuum light", 59110N
  • K. Shi, P. Li, S. Yin and Zhiwen Liu, 2004, "Surface profile measurement using chromatic confocal microscopy", 5606, pp. 124-131
  • Y. Yang, K. Chung, S. Yin, K. Reichard, Zhiwen Liu and Q. Wang, 2004, "Highly sensitive sensors using in-fiber gratings fabricated in photonic crystal nanostructures", 5360, pp. 237-246
  • M. Centurion, Zhiwen Liu, G. Steckman, G. Panotopoulos, J. Hong and D. Psaltis, 2002, "Holographic techniques for recording ultrafast events", pp. 44-50
  • Zhiwen Liu, W. Liu, C. Moser, D. Zhang, I. V. Solomatine, D. Psaltis and A. A. Gorohovsky, 2002, "Derivation and measurement of the M/# in spectral hole burning media", pp. 305-310

Research Projects

  • September 2014 - August 2020, "MRSEC: Center for Nanoscale Science," (Sponsor: NSF).
  • September 2014 - August 2018, "EFRI 2-DARE Preliminary Proposal: Design, Synthesis, Characterization and Device Fabrication of Transition Metal Dichalcogenides for Active and Nonlinear Photonics," (Sponsor: NSF).
  • January 2015 - December 2016, "Development of a fiber-based, multiplex, holographic coherent Raman microscope for label-free imaging," (Sponsor: NIH).
  • June 2014 - May 2016, "Axial slice light sheet microscopy," (Sponsor: National Institutes of Health).
  • September 2013 - August 2016, "Collaborative Research: Rayleigh and Raman scattering in an ultrahigh-Q microresonator - a new way to detect, identify, and measure nanoparticles," (Sponsor: NSF).
  • May 2013 - April 2016, "G-Fresnel cellular-phone spectrometer," (Sponsor: Vodafone Foundation).
  • August 2014 - July 2015, "Opto-Electro-Delivery (OED) Device to Enable Brain Structure-Function Study at Mesoscale," (Sponsor: Penn State College of Engineering).
  • September 2009 - August 2014, "Novel Optical Systems for real time monitoring of welding fumes," (Sponsor: National Institute of Occupational Safety and Health).
  • May 2012 - May 2013, "Novel optogenetic neuromodulation," (Sponsor: Penn State COE and HMC).

Honors and Awards

Service

Service to Penn State:

  • Chairperson, Promotion and tenure committee, 2015
  • Committee Member, Member of Communications & Space Sciences Laboratory, August 2009
  • Committee Member, EE 500 Colloquium Committee, 2015
  • Committee Member, Member of Electronic & Optical Materials and Devices Area Committee, January 2003
  • Faculty Advisor, PSU SPIE student chapter, 2010
  • Faculty Advisor, PSU Optical Society of America student chapter, 2011

Service to External Organizations:

  • Reviewer, NIH proposal mail reviewer, 2017 - 2017
  • External Reviewer, Iowa State University, 2016 - 2016
  • Reviewer, NIH proposal review panel, 2015 - 2015
  • External Reviewer, The George Washington University, 2015 - 2015
  • Editor, associate editor for IEEE Journal of Quantum Electronics, 2012
  • Board Member, Editorial board member of the Journal of Nonlinear Optical Physics & Materials, 2012
  • Chairperson, Ultrafast Imaging and Spectroscopy conference in SPIE Optics and Photonics, 2012
 


 

About

The School of Electrical Engineering and Computer Science was created in the spring of 2015 to allow greater access to courses offered by both departments for undergraduate and graduate students in exciting collaborative research in fields.

We offer B.S. degrees in electrical engineering, computer science and computer engineering and graduate degrees (master's degrees and Ph.D.'s) in electrical engineering and computer science and engineering. EECS focuses on the convergence of technologies and disciplines to meet today’s industrial demands.

School of Electrical Engineering and Computer Science

The Pennsylvania State University

209 Electrical Engineering West

University Park, PA 16802

814-863-6740

Department of Computer Science and Engineering

814-865-9505

Department of Electrical Engineering

814-865-7667