Gregory Hall

Senior Chemist
 

Chemistry Department
Building 555
Brookhaven National Laboratory
P.O. Box 5000
Upton, NY 11973-5000

Phone: (631) 344-4376
FAX:    (631) 344-5815
e-mail

Gas-Phase Molecular Dynamics

Research Interests

Chemical Physics: Molecular dynamics, spectroscopy, photochemistry and kinetics. Applications of high resolution spectroscopy to molecular dynamics; Doppler spectroscopy for the measurement of product correlations in bimolecular and unimolecular reactions. Statistical and dynamical models of vector correlations; experimental tests of unimolecular rate theory. Multiple surface reactions; coherent effects in multiple path reactions; measurement and interpretation of photofragment orientation. Collision-induced electronic transitions. Double-resonance spectroscopy for collision studies of energy and polarization transfer.

Education

A.B. in Chemistry, Cornell University, 1974
M.Sc. in Physical Chemistry, University of Toronto, 1976
Ph.D. in Physical Chemistry, University of Toronto, 1980

Professional Employment

Cornell University 1980-1987
            Manager, Facility for Laser Spectroscopy; Research Associate,
            Senior Research Asssociate
Brookhaven National Laboratory 1987-present
            Assistant chemist, Associate Chemist, Chemist, Senior Chemist,
            Deputy Chair

Fellowships and Visiting Appointments

            Max-Planck Institut für Strömungsforschung, Göttingen, summer 1986
            Physical Chemistry Institute, University of Zürich, 9/1996-8/1997
            Fellow of the American Physical Society, 2009

Representative Publications

  • Collinear two-color saturation spectroscopy in CN A–X (1–0) and (2–0) bands
    D. Forthomme, C. P. McRaven, T.J. Sears and G.E. Hall
    J. Molec. Spectrosc. 296, 36-42 (2014)  
    http://dx.doi.org/10.1016/j.jms.2013.12.006
  • Temperature-dependent, nitrogen-perturbed line shape measurements in the ν13 band of acetylene using a diode laser referenced to a frequency comb
    M. J. Cich, D. Forthomme, C. P. McRaven, G. V. Lopez, G. E. Hall, T. J. Sears and A. W. Mantz
    J. Phys. Chem. A 117, 13908-13918 (2013) http://dx.doi.org/10.1021/jp408960e
  • Argon-induced pressure broadening, shifting and narrowing in the CN A 2Π – X 2Σ+ (1-0) band.
    D. Forthomme, C. P. McRaven,  T. J. Sears  and G. E. Hall
    J. Phys. Chem. A 117, 11837-11846 (2013) http://dx.doi.org/10.1021/jp4030359
  • Sub-Doppler spectroscopy of mixed state levels in CH2
    C.-H. Chang, G. E. Hall and T. J. Sears
    J. Chem. Phys. 133, 144310 (2010)
  • Sub-Doppler Stark Spectroscopy in the A-X (1,0) Band of CN
    M. L. Hause, G. E. Hall, and T. J. Sears
    J. Phys. Chem. A, 113, 13342–13346 (2009).
  • Coherent and incoherent orientation and alignment of ICN photoproducts
    M. L. Costen and G. E. Hall
    Phys. Chem. Chem. Phys. 9, 272-287 (2007)
  • State-resolved thermalization of singlet and mixed singlet-triplet states of CH2
    A. V. Komissarov, A. Lin, T. J. Sears and G. E. Hall
    J Chem. Phys. 125, 084308 (2006)
  • Transient Laser Frequency Modulation Spectroscopy
    G. E. Hall and S. W. North
    Annu. Rev. Phys. Chem. 51, 243-74 (2000)
  • Vector Signatures of Adiabatic and Diabatic Dynamics in the Photodissociation of ICN
    M. L. Costen, S. W. North and G. E. Hall
    J. Chem. Phys. 111, 6735-49 (1999)
  • Applications of Doppler spectroscopy in photofragmentation
    R. J. Gordon and G. E. Hall
    Adv. Chem. Phys. 96, 1-50 (1996)
     

Complete publication list
 

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Last Modified: August 5, 2014