Skip to Main Content

Xuejun Lu

Xuejun Lu
Xuejun LuProfessor
  • CollegeFrancis College of Engineering
  • DepartmentElectrical & Computer Eng
  • Phone(978) 934-3359
  • Emailxuejun_lu@uml.edu

Research Interests

Optoelectronics, Nanophotonics & Fiber Optics

Prof. Xuejun LuÍs research interests include longwave infrared (LWIR) focal plane array (FPA), Multi-color (band) IR sensors; LWIR image amplifier; Flexible thin-film transistors; Printable electronics; chemical sensor; Single quantum dot emitters; Tera-hertz (THz) quantum dot photodetectors; LWIR Electro-optic modulators based on intersubband transitions and high-quality ultra-uniform quantum dot growth techniques.

Education

  • Ph D, (2001), The University of Texas - Austin, Texas
    Dissertation/Thesis Title: High-performance Thermo-optic Switch and Electro-optic Modulator Based on Polymeric Multi-mode Optical Waveguide with High Device Packing Density for Optical Network Application
  • MS, (1995), Beijing (Peking) University, Beijing, China - Beijing, China
    Dissertation/Thesis Title: Experimental Study of an External Cavity Laser based on Faraday Anomalous Dispersion Atomic Filter
  • BS: Chemistry, (1992), Beijing (Peking) University, Beijing - Beijing, China
    Dissertation/Thesis Title: Experimental Study of Dealuminum of Molecular Sieve

Awards and Honors

  • IDTechEx Academic Research and Development Award (2009), Scholarship/Research - IDTechEx
  • (2007)
  • Air Force summer faculty award (2007) - Kirtland AFB
  • Committee member and session Chair (2007) - Photonics Asia, Beijing, China.
  • Session co-Chair, Advanced photodetector section (2007), Scholarship/Research - Kirtland AFB
  • Air Force summer faculty award. (2006) - Wright Patterson AFB
  • Committee member and session chair. (2004) - Photonics Asia, Beijing, China.

Publications

  • Vaillancourt, J., Blasch, E., Gu, G., Lu, X., Reinhardt, K. (2016) "A Demonstration of On-Chip Self-Registered Image Fusion Using a Voltage-Tunable Mid-Wave and Long-Wave Infrared Dual-Band Focal Plane Array," IEEE Sensors Journal 16:11 pp. 4374 - 4379
  • Zhang, Y., Vaillancourt, J., Gu, G., Guo, W., Lu, X. (2016) "Quantum selection rule dependent plasmonic enhancement in quantum dot infrared photodetectors," Journal of Applied Physics 119:19
  • Mojaverian, N., Gu, G., Lu, X. (2015) "A plasmonic dipole optical antenna coupled quantum dot infrared photodetector," Journal of Physics D: Applied Physics 48:47
  • Lan, X., Lu, X., Blumenthal, T., Fratello, V., Chan, W., Truong, M., Kiyono, K., Zhang, Y., Gu, G., Tan, M. (2015) "Ultra-wideband microwave components fabricated using low-cost aerosol-jet printing technology," IEEE Computer Society 2015-June: pp. 156-158
  • Gu, G., Vaillancourt, J., Lu, X. (2014) "Analysis of near-field components of a plasmonic optical antenna and their contribution to quantum dot infrared photodetector enhancement," Optics Express 22:21 pp. 24970-24976
  • Gu, G., Vaillancourt, J., Lu, X. (2014) "Backside configured surface plasmonic enhancement," American Institute of Physics Inc 1590: pp. 195-199
  • Vaillancourt, J., Mojaverian, N., Lu, X. (2014) "Erratum: "A Longwave infrared focal plane array enhanced by backside-configured Plasmonic structures" (IEEE Photonics Technology Letters (2014) 26:8 (745-748))," IEEE Photonics Technology Letters 26:23 pp. 2412
  • Gu, G., Lu, X. (2014) "Near-field vector analysis of plasmonic structures enhancement on infrared photodetectors," SPIE 9163: pp. The Society of Photo-Optical Instrumentation Engineers (SPIE)
  • Gu, G., Mojaverian, N., Vaillancourt, J., Lu, X. (2014) "Surface plasmonic resonance induced near-field vectors and their contribution to quantum dot infrared photodetector enhancement," Journal of Physics D: Applied Physics 47:43
  • Gu, G., Lu, X. (2014) "Comparison of two complementary surface plasmonic structures and their enhancement in infrared photodetectors," Proceedings of SPIE - The International Society for Optical Engineering 9070:
  • Ling, Y., Zhang, H., Gu, G., Lu, X., Kayastha, V., Jones, C., Shih, W., Janzen, D. (2014) "A printable CNT-based FM passive wireless sensor tag on a flexible substrate with enhanced sensitivity," IEEE Sensors Journal 14:4 pp. 1193-1197
  • Vaillancourt, J., Mojaverian, N., Lu, X. (2014) "A longwave infrared focal plane array enhanced by backside-configured plasmonic structures," IEEE Photonics Technology Letters 26:8 pp. 745-748
  • Gu, G., Vaillancourt, J., Vasinajindakaw, P., Lu, X. (2013) "Backside-configured surface plasmonic structure with over 40 times photocurrent enhancement," Semiconductor Science and Technology 28:10
  • Subbaraman, H., Pham, D., Xu, X., Chen, M., Hosseini, A., Lu, X., Chen, R. (2013) "Inkjet-printed two-dimensional phased-array antenna on a flexible substrate," IEEE Antennas and Wireless Propagation Letters 12: pp. 170-173
  • Ling, Y., Gu, G., Liu, R., Lu, X., Kayastha, V., Jones, C., Shih, W., Janzen, D. (2013) "Investigation of the humidity-dependent conductance of single-walled carbon nanotube networks," Journal of Applied Physics 113:2
  • Liu, R., Vasinajindakaw, P., Gu, G., Vaillancourt, J., Lu, X. (2013) "Optimizing light absorption in quantum dot infrared photodetectors by tuning surface confinement of surface plasmonic waves," Journal of Physics D: Applied Physics 46:1
  • Chen, M.Y., Pham, D., Subbaraman, H., Lu, X., Chen, R.T. (2012) "Conformal Ink-Jet Printed -Band Phased-Array Antenna Incorporating Carbon Nanotube Field-Effect Transistor Based Reconfigurable True-Time Delay Lines," Microwave Theory and Techniques, IEEE Transactions on 60:1 pp. 179-184
  • Vasinajindakaw, P., Lu, X., Qian, X., Vangala, S., Goodhue, W. (2011) "High-operating temperature (HOT) broadband quantum-dot infrared photodetector," pp. 80122X–80122X
  • Vaillancourt, J., Vasinajindakaw, P., Lu, X., Qian, X., Vangala, S., Goodhue, W.D. (2011) "Thermo-electrically cooled shortwave infrared and longwave infrared dual-band quantum-dot photodetector," pp. 80120O–80120O
  • Vaillancourt, J., Vasinajindakaw, P., Hong, W., Lu, X., Qian, X., Vangala, S., Goodhue, W.D. (2010) "A LWIR quantum dot infrared photodetector working at 298K," pp. 760821–760821
  • Hong, W., Vasinajindakaw, P., Vaillancourt, J., Zhang, H., Gu, G., Liu, R., Lu, X., Qian, X., Vangala, S., Goodhue, W.D. (2010) "Multispectral infrared photodetector with carbon nanotube flexible electronic circuits," pp. 767906–767906
  • Ma, W.Q., Yang, X.J., Chong, M., Yang, T., Chen, L.H., Shao, J., Lu, X., Lu, W., Song, C.Y., Liu, H.C. (2008) "Voltage tunable two-color InAs/GaAs quantum dot infrared photodetector," Applied Physics Letters 93:1 pp. 13502-13502
  • Lu, X., Meisner, M.J., Vaillancourt, J., Li, J., Liu, W., Qian, X., Goodhue, W.D. (2007) "Modulation-doped InAs-InGaAs quantum dot longwave infrared photodetector with high quantum efficiency," Electronics Letters 43:10 pp. 589-590
  • Han, X., Janzen, D.C., Vaillancourt, J., Lu, X. (2007) "Printable high-speed thin-film transistor on flexible substrate using carbon nanotube solution," Micro & Nano Letters, IET 2:4 pp. 96-98
  • Vaillancourt, J., Lu, X., Han, X., Janzen, D.C. (2006) "High-speed thin-film transistor on flexible substrate fabricated at room temperature," Electronics Letters 42:23 pp. 1365-1366

Presentations

  • Guiru Gu, Runyu Liu, Yunfeng Ling, and Xuejun Lu, ÒPrinted CNT transistors with high on-off ratio and linearity., 2011
  • Jarrod Vaillancourt, Puminun Vasinajindakaw, Xuejun Lu, Xifeng Qian, Shivashankar R. Vangala and William D. Goodhue, ÒThermo-electrically cooled shortwave infrared and longwave infrared dual-band quantum-dot photodetector.Ó, 2011
  • Puminun Vasinajindakaw, Xuejun Lu, Xifeng Qian, Shivashankar R. Vangala and William D. Goodhue, ÒHigh-operating temperature (HOT) broadband quantum-dot infrared photodetector., 2011
  • Jarrod Vaillancourt, Puminun Vasinajindakaw, Wen Hong, Xuejun Lu, Xifeng Qian, Shivashankar R. Vangala and William D. Goodhue, 'A LWIR Quantum Dot Infrared Photodetector working at 298K', 2010
  • Wen Hong, PuminunVasinajindakaw, Jarrod Vaillancourt, Haiyan Zhang, Guiru Gu, Runyu Liu, Xuejun Lu, Xifeng Qian, Shivashankar R. Vangala and William D. Goodhue, "Multispectral infrared photodetector with carbon nanotube flexible electronic circuits., 2010
  • Jarrod Vaillancourt and Xuejun Lu, ÒVery longwave infrared (> 14 _m) quantum-dot photodetector.Ó Jarrod Vaillancourt and Xuejun Lu, ÒA monolithically integrated multi-spectral polarimetric quantum dot infrared photodetector.Ó, 2009
  • Jarrod Vaillancourt and, Xuejun Lu, ÒSmart photodetector and focal plane array,Ó, 2009
  • Jarrod Vaillancourt, Puminun Vasinajindakaw, and Xuejun Lu, ÒA voltage-tunable multi-spectral 320x256 InAs/GaAs quantum-dot infrared focal plane array (FPA),, 2009
  • Maggie Y. Chen, Xuejun Lu, Harish Subbaraman, and Ray T. Chen, ÒFully printed phased-array antenna for space communications, 2009
  • Xuejun Lu, Jarrod Vaillancourt, Mark J. Meisner, ÒA voltage-tunable multiband quantum dot infrared focal plane array with high photodetectivity., 2008
  • Xuejun Lu, Jarrod Vaillancourt, ÒVoltage tunable hyper-spectral quantum dot infrared photodetector (QDIP) Xuejun Lu, Jarrod Vaillancourt, ÒA voltage-tunable multiband quantum dot infrared focal plane array with high photodetectivity,Ó, 2008
  • Xuejun Lu, Xuping Zhang, ÒWaveguide polarization decoding module for free-space quantum key distribution,Ó, 2008
  • Xuejun Lu, ÒInAs quantum-dot intersubband optical amplifier,Ó, 2008
  • Yu Han, Xuping Zhang, and Xuejun Lu ÒThe intelligent real-time protection device for mesh optical network, 2008
  • ÒHigh-speed transparent flexible electronics,, 2008
  • A miniature electro-optic switch array, 2007
  • A two-photon sequential absorption photocurrent generation process in modulation doped InAs/GaAs quantum dots., 2007
  • Ò An all-optical nonlinear threshold gate based on high-order weakly coupled microring resonators with a low switching threshold,Ó, 2007
  • ÒA longwave infrared transparent flexible electronics by printing at room temperature,Ó, 2007
  • ÒA quantum dot longwave infrared photodetector with integrated optical amplifier.Ó, 2007
  • ÒAn electrically-controllable multi-spectral quantum dot infrared photodetector with high photodetectivity, 2007
  • ÒHigh-quality Ultra-uniform Quantum Dot (QD) Fabrication Techniques for High-performance Terahertz Quantum Cascaded Laser, 2007 - Beijing,China
  • A thin-film transistor with high field-effect mobility by using carbon nanotubes - IEEE Nanotechnology Materials and Devices Conference, 2006
  • An electro-optically tunable optical filter with an ultra-large wavelength tuning range - The international society for optical engineering, 2006
  • ÒA Longwave Infrared (LWIR) Photodetector Based on Nonlinear Absorption in InAs/GaAs Quantum Dots, - International Symposium on Biophotonics, Nanophotonics and Metamaterials, October 2006 - Hangzhou, China
  • An InAs/GaAs quantum dot long wave infrared photodetector with high photodectivity at 180K, 2005
  • Polymer waveguide optical CDMA encoder and decoder modules based on a new orthogonal coding scheme., 2005
  • ÒSuperprism effect and light refraction and propagation in photonic crystalsÓ, 2005
  • An adaptive optical filter based on thermo-optic (TO) polymeric waveguide lattice filters, 2004
  • Theoretical and experimental study of photonic-crystal based structures for optical communication applications, 2004
  • ÒPolymeric Waveguide Based Optical Signal Processing CircuitsÓ, 2004
  • Contact poling of the nonlinear optical film for polymer-based electro-optic modulator, 2002
  • Polarization-insensitive thermo-optic switch based on multimode polymeric waveguides with high device packing density., 2001
  • Thin film polymeric waveguide beam deflector based on thermo-optic effect., 2001
  • ÒPolymetric waveguide beam deflector for electro-optic switchingÓ, 2001
  • 1x2 Y-fed directional coupler modulator based on electro-optic polymer, 2000
  • Beam Deflection With Electro-Optic Polymer Waveguide Prism Array, 2000
  • Thermo-optically tuned cascaded polymer waveguide taps, 1999
  • ÒHigh-speed traveling-wave electrodes for polymeric electro-optic modulatorsÓ, 1999
  • ÒLaser beam deflector based on a domain-inverted electro-optic polymeric waveguide prism arrayÓ, 1999
  • ÒLinearized Y-coupler modulator based on a domain-inverted polymeric waveguideÓ, 1999
  • ÒPolymer-based highly multimode electro-optic waveguide modulatorÓ, 1998
  • Theodore Grosch, ÒCommercializing TechnologyÓ - SPIE International Symposium on Photonic Sensors and Controls for Commercial Applications, 1994 - Boston MA.

Intellectual Property

  • Patent - Lu, X., Wang, S., Levinson, F."Integrated variable optical attenuator," 7235852 United States
  • Patent - Lu, X., Liu, J., Wang, Z., Huang, Y."Scalable and exchangeable erbium doped fiber amplifier for DWDM," 7236700 United States
  • Patent - Lu, X., Liu, J., Wang, Z., Huang, Y."Dual fiber optic amplifier with shared pump source," 7031051 United States
  • Patent - Lu, X."A Long-wave InAs/GaAs Quantum Dot Infrared Photodetector Based on Two-photon Absorption Process with Ultra-low Noise Level," United States
  • Patent - Lu, X., Liu, J., Wang, Z., Huang, Y."Staged amplifier for lower noise figure and higher saturation power," United States

Contracts, Fellowships, Grants and Sponsored Research

  • Smart Photodetector and Focal Plane Array (), - AFOSR, STTR Phase I with Applied NanoFemto technologies
    Lu, X.
  • (2012), Grant - AFOSR
    Lu, X.
  • Electrically Switchable Plasmonic Polarizers with High Extinction Ratio and Enhan (2012), -
    Lu, X. (Principal)
  • New, GK-12: Vibes and Waves in Action: A Cross-Disciplinary Collaborative Network (2009), - NSF
    Lu, X.
  • Photonic Antenna Enhanced MWIR/LWIR Photodetector with a High Operating Temperatu (2013), - AIR FORCE RESEARCH LABORATORY
    Lu, X. (Principal)
  • Photonic Antenna Coupled Middle Wave Infrared Photodetector and Focal Plane Array (2012), Grant - NASA, STTR Phase I with Applied NanoFemto technologies
    Lu, X. (Co-Principal)
  • Photonic Antenna Coupled Middle Wave Infrared Photodetector and Focal Plane Array (2012), Contract - NASA GODDARD SPACE FLIGHT CENTER
    Lu, X. (Principal)
  • Smart photodetector and focal plane array with voltage-tunable multi-spectral pol (2009), Contract - AIR FORCE OFFICE OF SCIENTIFIC RESEARCH
    Lu, X. (Principal)
  • Photonic Antenna Enhanced MWIR/LWIR Photodetector with a High Operating Temperatu (2012), - AIR FORCE RESEARCH LABORATORY
    Lu, X. (Principal)
  • Adaptive multi-mode photodetector and focal plane array (2010), Contract - AIR FORCE OFFICE OF SCIENTIFIC RESEARCH
    Lu, X. (Principal)
  • Low Dark Current Longwave and Far infrared Dual-band Quantum Dot Photodetector wi (2009), Grant -
    Lu, X. (Principal)
  • Developing Coupled Quantum Dot Multi-Functional Materials (), - NSF
    Lu, X.
  • Flexible and Extended Range Radio Frequency Identification Tags (2009), - NATIONAL SCIENCE FOUNDATION
    Lu, X. (Principal)
  • Developing Coupled Quantum Dot Multi-Functional Materials for Optoelectronics Int (2009), - NATIONAL SCIENCE FOUNDATION
    Lu, X. (Principal)
  • Adaptive multi-mode photodetector and focal plane array (2009), - AFOSR, STTR Phase I with Applied NanoFemto technologies
    Lu, X. (Co-Principal)
  • A Fully Printed Flexible 4-bit 2D 16-element Phase Array Antennas (2009), Grant - NASA
    Lu, X. (Co-Principal)
  • Low Dark Current Longwave and Far infrared Dual-band Quantum Dot Infrared Photodetector (2009), Grant - AFOSR
    Lu, X.
  • Developing Infrared (IR) Transparent Conductive Electrode Technology (2008), - AFOSR
    Lu, X.
  • A Fully Printed Flexible 4 BIT 2D (4X4) 16-Element Phased Array Antenna For Lunar (2009), - NASA GLENN RESEARCH CTR
    Lu, X. (Principal)
  • Developing Infrared (IR) Transparent Conductive Electrode Technology for Multi-fu (2008), Grant -
    Lu, X. (Principal)
  • Flexible and Extended Range Radio Frequency Identification Tags (2009), Grant - NSF
    Lu, X. (Co-Principal)
  • Thermal-electrically cooled longwave infrared photodetectors and focal plane arra (2008), Grant -
    Lu, X. (Principal)
  • A Quantum Dot Infrared Photodetector with Integrated Polarizer (2008), Grant -
    Lu, X. (Principal)
  • A Long-Wave Infrared Focal Plane Array with Ultra-High Sensitivity and Large Fiel (2007), Grant - U.S. DEPARTMENT OF THE AIR FORCE
    Lu, X. (Principal)
  • Printable Nano-Field Effect Transistors Combined with Carbon Nanotube Based Print (2008), Grant - NASA GLENN RESEARCH CTR
    Lu, X. (Principal)
  • Investigation of Optical Transparent Electrodes (2007), Grant -
    Lu, X. (Principal)
  • Developing MIR and LWIR Quantum Dot Infrared Photodectors and Focal Plane Array (2007), Grant -
    Lu, X. (Principal)
  • Developing MIR and LWIR Quantum Dot Infrared Photodectors and Focal Plane Array (2007), Grant -
    Lu, X. (Principal)
  • Developing MIR and LWIR Quantum Dot Infrared Detectors and Focal Plane Array (2007), Grant - Raytheon
    Lu, X. (Co-Principal)
  • Development and commercialization of high-speed infrared-transparent transistors on flexible substrates (2007), Grant - NSF
    Lu, X. (Co-Principal)
  • LWIR and FIR Infrared Quantum Dot Photodetector with High Sensitivity and Large Field-of-View (2007), Grant - Air Force
    Lu, X. (Co-Principal)
  • Investigate transparent conductive electrodes (2007), Sponsored Research - Crystal Research Inc
    Lu, X. (Principal)
  • A Long-Wave Infrared Focal Plane Array with Ultra-high Sensitivity and Large Field-of-View (2006), - Air Force
    Lu, X. (Co-Principal)
  • Development of LWIR and FIR Infrared Quantum Dot Photodetector with High Quantum Efficiency (2006), Grant - Raytheon
    Lu, X. (Co-Principal)
  • A Printable Silicon Nano-Transistor on Flexible Substrate (2006), Grant - NASA
    Lu, X. (Co-Principal)
  • A Room-temperature High-speed Quantum Dot Infrared Photodetector with High Photodetectivity (2005), - NASA
    Lu, X. (Co-Principal)
  • A High-speed Electr-Optic Phase Compensator for Areo-Optic Applications (2005), Grant - Air Force
    Lu, X. (Co-Principal)
  • Integrated Optical Amplifier and/Photodetector Using Quantum Dots for Longwave Infrared Applications (2005), Sponsored Research - Umass Lowell
    Lu, X. (Principal)
  • Initial Investigation of the EO Properties of KTN Crystlas (2004), Grant - Crystal Research Inc
    Lu, X. (Principal)
  • Development of 32-channel variable optical attenuator (VOA) drivers for phased-array antenna (2004), Sponsored Research - Crystal Research Inc
    Lu, X. (Principal)
  • Development of Techniques for On-chip Optical Interconnect Bus (2004), Sponsored Research - Crystal Research Inc
    Lu, X. (Principal)
  • Investigation of the Wavelength Tunability of an Optical Etalon Filter (2004), Sponsored Research - PolarOnyx Inc
    Lu, X. (Principal)