Prof. Qing Hu Profile

Prof. Qing Hu

Professor of Electrical Engineering at Massachusetts Institute of Technology

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 31 August 2022 Presentation + Paper

Gal/Xgal U/LDB Spectroscopic/Stratospheric THz Observatory: GUSTO

Christopher Walker, Craig Kulesa, Abram Young, William Verts, Jian-Rong Gao, Qing Hu, Jose Silva, Behnam Mirzaei, Wouter Laauwen, Jeffrey Hesler, Christopher Groppi, Anders Emrich

Proceedings Volume 12190, 121900E (2022) https://doi.org/10.1117/12.2629051

KEYWORDS: Terahertz radiation, Telescopes, Quantum cascade lasers, Spectrometers, Receivers, Mirrors, Clouds, Beam splitters, Observatories

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Proceedings Article | 13 December 2020 Poster

4.7 THz local oscillator multiplexer for GUSTO

Behnam Mirzaei, Matvey Finkel, J.R. Silva, Wouter Laauwen, Christopher Groppi, Ali Khalatpour, Qing Hu, Abram Young, Christopher Walker, Jian Rong Gao

Proceedings Volume 11453, 114533P (2020) https://doi.org/10.1117/12.2565778

KEYWORDS: Terahertz radiation, Oscillators, Multiplexers, Quantum cascade lasers, Terahertz spectroscopy, Spectroscopy, Observatories, Nitrogen, Carbon, Oxygen

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Proceedings Article | 13 December 2020 Presentation

Multi-beam local oscillator for a 100-pixel heterodyne array receiver at THz

Yuner Gan, Behnam Mirzaei, Jose R. G. Silva, Ali Khalatpour, Qing Hu, Christopher Groppi, Jose Siles, Floris van der Tak, Jian-Rong Gao

Proceedings Volume 11453, 114530S (2020) https://doi.org/10.1117/12.2560939

KEYWORDS: Heterodyning, Receivers, Terahertz radiation, Quantum cascade lasers, Oscillators, Diffraction gratings, Optical testing, Diffraction, Spectral resolution, Astronomy

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Proceedings Article | 1 March 2019 Presentation + Paper

Optomechanical control of quantum cascade laser frequency combs

David Burghoff, Ningren Han, Filippos Kapsalidis, Nathan Henry, Mattias Beck, Jacob Khurgin, Jerome Faist, Qing Hu

Proceedings Volume 10939, 109391E (2019) https://doi.org/10.1117/12.2508316

KEYWORDS: Microelectromechanical systems, Quantum cascade lasers, Frequency combs, Mirrors, Modulation, Mid-IR, Spectroscopy, Quantum well infrared photodetectors, Control systems, Electrical engineering

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Proceedings Article | 17 September 2018 Presentation

Chiral domain-boundary magnetoplasmons: magnetically cast topological edge excitations in edgeless electron gas (Conference Presentation)

Dafei Jin, Yang Xia, Thomas Christensen, Siqi Wang, Kingyan Fong, Matthew Freeman, Geoffrey Gardner, Saeed Fallahi, Qing Hu, Yuan Wang, Lloyd Engel, Michael Manfra, Nicholas Fang, Xiang Zhang

Proceedings Volume 10721, 107210W (2018) https://doi.org/10.1117/12.2318785

KEYWORDS: Photonics

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Proceedings Article | 9 July 2018 Presentation + Paper

4×2 HEB receiver at 4.7 THz for GUSTO

J. R. Silva, B. Mirzaei, W. Laauwen, N. More, A. Young, C. Kulesa, C. Walker, A. Khalatpour, Q. Hu, C. Groppi, J. Gao

Proceedings Volume 10708, 107080Z (2018) https://doi.org/10.1117/12.2313410

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Receivers, Lenses, Antennas, Silicon, Observatories, Space telescopes, Optical simulations, Collimation

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SPIE Journal Paper | 12 September 2017

Pseudorandom dynamics of frequency combs in free-running quantum cascade lasers

Nathan Henry, David Burghoff, Yang Yang, Qing Hu, Jacob Khurgin

OE, Vol. 57, Issue 01, 011009, (September 2017) https://doi.org/10.1117/12.10.1117/1.OE.57.1.011009

KEYWORDS: Frequency modulation, Fermium, Quantum cascade lasers, Hole burning spectroscopy, Terahertz radiation, Frequency combs, Modulation, Mode locking, Fluorescence correlation spectroscopy, Optical engineering

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Proceedings Article | 5 January 2017 Paper

Temporal dynamics of THz quantum cascade laser frequency combs with strong injector anticrossing

Petar Tzenov, David Burghoff, Qing Hu, Christian Jirauschek

Proceedings Volume 10226, 102260N (2017) https://doi.org/10.1117/12.2262350

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Hole burning spectroscopy, Monte Carlo methods, Switching, Frequency combs, Phonons, Optical simulations, Modulation, Laser development

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Proceedings Article | 26 May 2016 Paper

Terahertz imaging with quantum cascade lasers

Alan Lee, Tsung-Yu Kao, Ian Zimmerman, Naoki Oda, Qing Hu

Proceedings Volume 9854, 98540R (2016) https://doi.org/10.1117/12.2224140

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Sensors, Microbolometers, Imaging systems, Metals, Nondestructive evaluation, Silicon, Staring arrays, Interfaces

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Proceedings Article | 25 May 2016 Paper

THz QCLs for heterodyne receivers and wavelength modulation spectroscopy

Alan W. Lee, Tsung-Yu Kao, Ian Zimmerman, William T. Cole, Richard Thurston, Richard Saykally, Ningren Han, Qing Hu

Proceedings Volume 9836, 98362O (2016) https://doi.org/10.1117/12.2224158

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Heterodyning, Receivers, Modulation, Sensors, Absorption, Signal detection, Spectroscopes, Microelectromechanical systems

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Proceedings Article | 23 July 2014 Paper

A 4.7THz heterodyne receiver for a balloon borne telescope

D. Hayton, J. Kloosterman, Y. Ren, T. Kao, J. Gao, T. Klapwijk, Q. Hu, C. Walker, J. Reno

Proceedings Volume 9153, 91531R (2014) https://doi.org/10.1117/12.2055790

KEYWORDS: Terahertz radiation, Receivers, Quantum cascade lasers, Heterodyning, Telescopes, Gas lasers, Stars, Oscillators, Temperature metrology, Spectroscopy

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Proceedings Article | 31 January 2014 Paper

Microstrip-antenna-coupled distributed feedback terahertz quantum-cascade lasers

Tsung-Yu Kao, Xiaowei Cai, Qing Hu, John Reno

Proceedings Volume 8993, 89930E (2014) https://doi.org/10.1117/12.2036604

KEYWORDS: Antennas, Terahertz radiation, Phase modulation, Quantum cascade lasers, Waveguides, Optical simulations, Finite element methods, Pulsed power, Scanning electron microscopy, Metals

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Proceedings Article | 23 February 2013 Paper

Terahertz quantum cascade laser based optical coherence tomography

Alan Lee, Tsung-Yu Kao, Qing Hu, John Reno

Proceedings Volume 8585, 858508 (2013) https://doi.org/10.1117/12.2001127

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Interfaces, Mirrors, Optical coherence tomography, Tomography, Dielectrics, Antennas, Neodymium, Interferometers

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Proceedings Article | 15 October 2012 Paper

Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser

Naoki Oda, Tsutomu Ishi, Takao Morimoto, Takayuki Sudou, Hitoshi Tabata, Shunsuke Kawabe, Kyohei Fukuda, Alan W. Lee, Qing Hu

Proceedings Volume 8496, 84960Q (2012) https://doi.org/10.1117/12.928564

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Microscopes, Cameras, Signal to noise ratio, Spatial filters, Silicon, Optical filters, Transmittance, Infrared radiation

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Proceedings Article | 24 September 2012 Paper

Stabilized HEB-QCL heterodyne spectrometer at super-terahertz

Y. Ren, D. Hayton, J. Hovenier, M. Cui, J. Gao, T. Klapwijk, S. Shi, T.-Y. Kao, Q. Hu, J. Reno

Proceedings Volume 8452, 845210 (2012) https://doi.org/10.1117/12.925651

KEYWORDS: Quantum cascade lasers, Spectroscopy, Terahertz radiation, Absorption, Heterodyning, Oscillators, Bolometers, Sensors, Actuators, Signal detection

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Proceedings Article | 9 May 2012 Open Access

Proposal for real-time terahertz imaging system with palm-size terahertz camera and compact quantum cascade laser

Naoki Oda, Alan W. Lee, Tsutomu Ishi, Iwao Hosako, Qing Hu

Proceedings Volume 8363, 83630A (2012) https://doi.org/10.1117/12.917682

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Cameras, Microbolometers, Imaging systems, Signal to noise ratio, Waveguides, Silicon, Absorption, Microscopes

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Proceedings Article | 17 February 2011 Paper

High-temperature performance and broad continuous tunability of terahertz quantum-cascade lasers

Sushil Kumar, Qi Qin, Chun Chan, Qing Hu, John Reno

Proceedings Volume 7953, 79530O (2011) https://doi.org/10.1117/12.875686

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Waveguides, Semiconductor lasers, Laser scattering, Scattering, Silicon, Laser applications, Spectroscopy, Active optics

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Proceedings Article | 15 July 2010 Paper

Heterodyne gas cell measurements at 2.9 THz using a quantum cascade laser as local oscillator

Y. Ren, J. R. Gao, J. N. Hovenier, R. Higgins, W. Zhang, A. Bell, B. Klein, T. Klapwijk, S. C. Shi, T.-Y. Kao, S. Kumar, Q. Hu, J. Reno

Proceedings Volume 7741, 774118 (2010) https://doi.org/10.1117/12.857658

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Heterodyning, Receivers, Oscillators, Temperature metrology, Spectroscopy, Spectrometers, Astronomy, Spectroscopes

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Proceedings Article | 29 January 2008 Paper

High-temperature and high-power operation of terahertz quantum-cascade lasers

Sushil Kumar, Alan Lee, Qi Qin, Benjamin Williams, Qing Hu, John Reno

Proceedings Volume 6909, 69090I (2008) https://doi.org/10.1117/12.768298

KEYWORDS: Waveguides, Quantum cascade lasers, Terahertz radiation, Reflectivity, Pulsed laser operation, Gallium arsenide, Mirrors, Wave propagation, Radio propagation, Semiconducting wafers

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Proceedings Article | 8 February 2007 Paper

High-temperature and high-power terahertz quantum-cascade lasers

Benjamin Williams, Qi Qin, Sushil Kumar, Qing Hu, John Reno

Proceedings Volume 6485, 64850M (2007) https://doi.org/10.1117/12.714207

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Waveguides, Phonons, Electrons, Temperature metrology, Continuous wave operation, Semiconducting wafers, Imaging spectroscopy

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Proceedings Article | 23 January 2006 Paper

THz quantum semiconductor devices

H.C. Liu, H. Luo, D. Ban, M. Wächter, C. Y. Song, Z. R. Wasilewski, M. Buchanan, G. C. Aers, A. J. SpringThorpe, J. C. Cao, S. L. Feng, B. S. Williams, Q. Hu

Proceedings Volume 6029, 602901 (2006) https://doi.org/10.1117/12.667658

KEYWORDS: Terahertz radiation, Doping, Absorption, Quantum well infrared photodetectors, Quantum cascade lasers, Gallium arsenide, Aluminum, Phonons, Waveguides, Temperature metrology

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Proceedings Article | 1 April 2005 Paper

Terahertz quantum cascade lasers with metal-metal waveguides

Benjamin Williams, Stephen Kohen, Sushil Kumar, Qing Hu, John Reno

Proceedings Volume 5738, (2005) https://doi.org/10.1117/12.597122

KEYWORDS: Waveguides, Terahertz radiation, Quantum cascade lasers, Reflectivity, Wafer bonding, Metals, Semiconducting wafers, Continuous wave operation, Mirrors, Resistance

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Proceedings Article | 11 May 2004 Paper

Terahertz quantum cascade lasers using resonant-phonon depopulation and metal-metal waveguides

Benjamin Williams, Sushil Kumar, Hans Callebaut, Stephen Kohen, Qing Hu, John Reno

Proceedings Volume 5365, (2004) https://doi.org/10.1117/12.530087

KEYWORDS: Waveguides, Terahertz radiation, Quantum cascade lasers, Continuous wave operation, Resistance, Gallium arsenide, Temperature metrology, Phonons, Picosecond phenomena

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Proceedings Article | 27 June 1997 Paper

Micromachined room-temperature microbolometer for millimeter-wave detection and focal-plane imaging arrays

Arifur Rahman, Erik Duerr, Gert de Lange, Qing Hu

Proceedings Volume 3064, (1997) https://doi.org/10.1117/12.277073

KEYWORDS: Microbolometers, Antennas, Niobium, Bolometers, Silicon, Staring arrays, Sensors, Semiconducting wafers, Modulation, Micromachining

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Proceedings Article | 1 July 1991 Paper

Quantum-limited quasiparticle mixers at 100 GHz

Carl Mears, Qing Hu, Paul Richards, A. Worsham, Daniel Prober, Antti Raisanen

Proceedings Volume 1477, (1991) https://doi.org/10.1117/12.45612

KEYWORDS: Infrared radiation, Quasiparticles, Microwave radiation, Oscillators, Quantum physics, Double sideband modulation, Superconductivity, Amplifiers, Single sideband modulation, Tantalum

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