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 Laboratory Studies And Atmospheric Observations (329H): People
Brian  Drouin's Picture
Jet Propulsion Laboratory
M/S 183-901
4800 Oak Grove Drive
Pasadena, CA 91109
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Curriculum Vitae:

Brian Drouin
Group Supervisor

Dr. Brian Drouin's background in chemistry and mathematics, and interest in molecular structure and symmetry, have fostered a career molecular spectroscopy to support remote sensing observations. Beginning with microwave spectroscopy of organometallic compounds, his Ph. D. work involved measurement and analyses of highly precise rotational transition frequencies of molecules in cold molecular beams. At JPL he has recorded and analyzed millimeter and submillimeter spectra of both astrophysical and atmospheric molecules while incorporating state-of-the-art hardware and software novel spectrometers. He is now a JPL research scientist and is responsible for measurements of molecular line-shape parameters for the Microwave Limb Sounder, as well as measurements of collision rates for water at very low temperatures, and THz measurements of molecules that are expected to be observable with the Herschel Space Observatory. He is the primary caretaker for the JPL spectral line catalog used throughout the spectroscopy and remote sensing communities. He is also the Deputy Principle Investigator for the Polar Radiant Energy in the Far-InfraRed Experiment (PREFIRE) that will quantify the radiative processes effected by changing temperatures in the Arctic.

  • B.S. in Mathematics, University of Wisconsin (1995)
  • B.S. in Chemistry, University of Wisconsin (1995)
  • Ph.D. in Chemistry, University of Arizona (1999)

Research Interests
  • Instrumentation for remote detection of far-infrared radiation (D-PI, PREFIRE)
  • Atmospheric Chemistry, Climate Change and Pollution (PI - Millimeter and Submillimeter Spectroscopy for Atmospheric Research)
  • Low Temperature Collisional Dynamics (PI - Measurements of State-to-State Collision Rates for Water)
  • Molecular Spectra and Structure (PI - Laboratory Spectroscopy and Analysis for Herschel, PI - Millimeter and Submillimeter Spectral Line Catalog)
  • Instrumentation for Laboratory and Field Studies (PI - Spectrometer-on-a-Chip)


OCO-2 - Orbiting Carbon Observatory Icon OCO-2 - Orbiting Carbon Observatory
The Orbiting Carbon Observatory-2 (OCO-2) is a mission designed to make precise, time-dependent global measurements of atmospheric carbon dioxide (CO2) from an Earth orbiting satellite.

MLS - Microwave Limb Sounder Icon MLS - Microwave Limb Sounder
The Microwave Limb Sounder (MLS) experiments measure naturally-occurring microwave thermal emission from the limb (edge) of Earth's atmosphere to remotely sense vertical profiles of atmospheric gases, temperature, pressure, and cloud ice.

PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment) Icon PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment)
Polar Radiant Energy in the Far-InfraRed Experiment (PREFIRE) will quantify the radiative processes effected by changing temperatures in the Arctic.

Professional Experience
  • Jet Propulsion Laboratory (1999-Present)
    • Group Supervisor, Laboratory Studies and Atmospheric Observations (2015 - present)
    • Research Scientist, Science Division (2005 - Present)
    • Scientist, Science Division (2001-2005)
    • California Institute of Technology Postdoctoral Scholar at JPL (1999-2001)
  • University of Arizona, Department of Chemistry (1995-1999)
    • Research Assistant, Microwave Spectroscopy (1996-1999)
    • Teaching Assistant, Physical & General Chemistry (1995-1999)
  • University of Wisconsin, (1993-1995)
    • Undergraduate Researcher, Inorganic Chemistry (1993-1995)
    • Undergraduate Researcher, Horticulture (1994-1995)
    • Undergraduate Researcher, Analytical Chemistry (1993, 1995)

Selected Awards
  • JPL Voyager - Demonstration of a miniaturized pulse-echo millimeter wave spectrometer
  • NASA Individual Outstanding Accomplishment "Significant scientific discovery by measuring the structure, spectrum, and dipole moment of HOONO" (2006)
  • NASA Group Achievement Award for the Aura Microwave Limb Sounder Ground Data System Development Team (2005)
  • Certificate of Accomplishment "Awarded in Appreciation of Your Contribution to the Aura Microwave Limb Sounder Science Assessment Team" (2005)

    Selected Publications

    First author Publications

    1. Drouin, B.J., "Practical uses of SPFIT", J. Molec. Spectrosc. 340, 1-15, 2017.
    2. Drouin, B.J., Crawford, T.J., Yu, S., "Validation of ozone intensities at 10 μm with THz spectrometry", J. Quant. Spectrosc. Radiat. Trans. 203 282-292, 2017.
    3. Drouin, B.J., D.C. Benner, L.R. Brown, M.J. Cich, T.J. Crawford, V.M. Devi, A. Guillaume, J.T. Hodges, E.J. Mlawer, D.J. Robichaud, F. Oyafuso, V. J. Payne, K. Sung, E.H. Wishnow, S. Yu, "Multispectrum analysis of the Oxygen A-band." J. Quant. Spectrosc. & Radiat. Trans. 186, 118-138, 2017.
    4. Drouin, B.J., A. Tang, E. Schlecht, E, Brageot, Q.J. Gu, Y. Ye, R. Shu, M.C.F Change and Y. Kim, "A CMOS millimeter-wave transceiver embedded in a semi-confocal Fabry-Perot cavity for molecular spectroscopy", J. Chem. Phys. 145(7) 074201, 2016.
    5. Drouin, B.J., V. Payne, F. Oyafuso, K. Sung, E. Mlawer, “Pressure broadening of oxygen by water”, J. Quant. Spectrosc. & Radiat. Trans., 133 190-198 2014.
    6. Drouin, B.J., S. Yu, B. M. Elliott, T. J. Crawford, C. E. Miller, “High resolution spectral analysis of oxygen. III. Laboratory investigation of the airglow bands”, J. Chem. Phys. 139, 144301, 2013.
    7. Drouin B.J., J.C. Pearson, S. Yu, H. Gupta “Characterization and use of a 1.3-1.5 THz multiplier chain for molecular spectroscopy.” (invited paper) IEEE-TST 3(3) 314-321, 2013.
    8. Drouin B.J. “Isotopic Spectra of the Hydroxyl Radical” J. Phys. Chem. A 117(39) 10076-10091, 2013.
    9. Drouin, B.J., L. Wiesenfeld, "Low-Temperature water-hydrogen-molecule collisions probed by pressure broadening and line shift", Phys. Rev. A 86, 022705, 2012.
    10. Drouin, B.J., H. Gupta, S. Yu, C.E. Miller, H.S.P. Mueller, "High resolution spectral analysis of oxygen. II. Rotation al spectra of a a 1Δg O2 isotopologues", J. Chem. Phys. 136, 2012.
    11. Drouin B.J., S. Yu, J. C. Pearson, H. Gupta, "Terahertz Spectroscopy for Space Applications, 2.5-2.7: THz Spectra of HD, H2O and NH3" Journal of Molecular Structure Special Issue on THz Spectroscopy, 1006, 2-12, 2011.
    12. Drouin B.J., S. Yu, "Acetylene Spectra near 2.6 THz" Journal of Molecular Spectroscopy 269(2), 254-256, 2011.
    13. Drouin B.J., S. Yu, C.E. Miller, H.S.P. Mueller, F. Lewen, S.Bruenken, H. Habara, "Terahertz spectroscopy of oxygen,O2, 3Σg and 1Δ electronic states", Journal of Quantitative Spectroscopy and Radiative Transfer, 111, 1167-1173, 2010.
    14. Drouin B.J., S. Yu, J.C. Pearson, H.S.P. Mueller, "High resolution spectroscopy of CH3D and 13CH3D", Journal of Quantitative Spectroscopy and Radiative Transfer 110(18) 2077-2081, 2009.
    15. Drouin, B.J., R. R. Gamache, "Temperature Dependent Air Broadened Linewidths of Ozone Rotational Transitions" Journal of Molecular Spectroscopy, 251(1-2), 1-3, 2008.
    16. Drouin, B.J., "Temperature dependent pressure induced linewidths of O2 and 18O16O transitions in nitrogen, oxygen and air", Journal of Quantitative Spectroscopy and Radiative Transfer, 105 (3): 450-458, 2007.
    17. Drouin, B.J., "Submillimeter measurements of N2 and air broadening of hypochlorous acid," Journal of Quantitative Spectroscopy and Radiative Transfer, 103 (3): 558-564, 2007.
    18. Drouin, B.J., J. C. Pearson, A. Walters, V. Lattanzi "THz Measurements of Propane" Journal of Molecular Spectroscopy, 240 (2): 227-237, 2006.
    19. Drouin, B. J., F.W. Maiwald, "Extended THz measurements of nitrous oxide, N2O," Journal of Molecular Spectroscopy, 236 (2): 260-262, 2006.

    Recent Peer-reviewed Non-first Author Publications

    1. Tang A., Kim, Y., Reck, T., Chattopdhyay, G., Mehdi, I., Drouin, B.J., Cooper, K.B., Livesey, N. Chang, M-C.F., "DDFS and ∑Δ approaches for fractional frequency synthesis in terahertz instruments" submitted to IEEE Trans. THz Sci. & Tech. August 2017.
    2. Nemchick, D.J., Drouin, B.J., Tang, A.J., Kim, Y., Chang, M-C.F., "Sub-Doppler spectroscopy with a CMOS transmitter", accepted to IEEE Trans. THz Sci. & Tech. August 2017.
    3. Raymond, A.W. Drouin, B.J., Tang, A., Schlecht, E., Mazur, E. "Miniature cavity for in situ millimeter wave gas sensing: N2O and CH3OH detection", Sensors and Actuators B: Chemical, 254, 763-770 2018.
    4. Gordon I.E., Rothman, L.S., Hill, C., Kochanov, R.V., Tan, Y., Bernath, P.F., Birk, M., Boudon, V., Campargue, A., Chance, K.V., Drouin, B.J., Flaud, J.-M., Gamache, R.R., Hodges, J.T., Jacquemart, D., Perevalov, V.I., Perrin, A., Shine, K.P., Smith, M.-A.H., Tennyson, J., Toon, G.C., et al. "The HITRAN2016 molecular spectroscopic database" J. Quant. Spectrosc. Radiat. Trans. 203, 3-69, 2017.
    5. Oyafuso, F., H. Payne, V.H., Drouin, B.J., Devi, V.M., Benner, D.C., Sung, K., Yu, S.,Gordon, I.E., Kochanov, R., Tan, Y., Crisp, D., Mlawer, E.J., Guillaume, A., "High accuracy absorption coefficients for the Orbiting Carbon Observatory-2 (OCO-2) mission: Validation of updated carbon dioxide cross-sections using atmospheric spectra" J. Quant. Spectrosc. Radiat. Trans. 203, 213-223, 2017.
    6. Gamache, R.R., Roller, C., Lopes, E., Gordon, I.E., Rothman, L.S., Polyansky, O.L., Zobov, N.F., A. Kyuberis, A.A., Tennyson, J., Yurchenko, S.N., Császár, A.G., Furtenbacher, T., Huang, X., Schwenke, D.W., Lee, T.J., Drouin, B.J., Tashkun, S.A., Perevalov, V.I., Kochanov, R.V., "Total internal partition sums for 166 isotopologues of 51 molecules important in planetary atmospheres: Application to HITRAN2016 and beyond", J. Quant. Spectrosc. Radiat. Trans. Available 203, 70-87, 2017.
    7. Schroeder, P.J.; Cich, M.J.; Yang, J.; Swann, W.C., Coddington, I., Newbury, N. R., Drouin, B. J., Rieker, G. B.., "Broadband, high-resolution investigation of advanced absorption line shapes at high temperature" Phys. Rev. A. 96(2) 022514, 2017.
    8. Bray, C., A. Cuisset, F. Hindle, R. Bocquet, G. Mouret, B.J. Drouin, "CH3D photomixing spectroscopy up to 2.5 THz: New set of rotational and dipole parameters, first THz self-broadening measurements" J. Quant. Spectrosc. & Radiat. Trans. 189, 198-205, 2017.
    9. Shu, R., J. Li, A. Tang. B.J. Drouin, Q.J. Gu, "Coupling-Inductor-Based Hybrid mm-Wave CMOS SPST Switch" IEEE Trans. Circ. & Syst. II: Exp. Briefs, 64(4), 367-371, 2017.
    10. Domenech, J.L., B.J. Drouin, J. Cernicharo, V.J. Herrero, I. Tanarro, "The high-resolution infrared spectrum of HCl+" Ap. J. Letters, 833(2) L32, 2016.

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