Prof Helen Fielding - Physical Chemistry

Femtosecond dynamics Nanosecond laser spectroscopy Wave packet dynamics Coherent control Rydberg states Multichannel quantum defect theory Ultrafast photochemistry Ultrafast photobiology Ultrafast surface science

tel: +44 (0)20 7679 5575 fax: +44 (0)20 7679 7463 internal: 25575 labs: +44 (0)20 7679 1101/4705/4667 email: h.h.fielding@ucl.ac.uk Biographical Details

Research

Our group employs lasers to investigate the spectroscopy and dynamics of the excited states of atoms, small molecules, organic molecules and biomolecules in the gas-phase and on metal surfaces. We are also interested in developing ways to control the photophysics and photochemistry of these systems using ultrafast laser technology. Our research involves a combination of experiment and theory. We have a number of collaborations with experimentalists and theoreticians in the UK and abroad.

If you would like to learn more about our research please follow this link to the Fielding Group web pages

Selected Publications:

1. R.S. Minns, R. Patel, J.R.R. Verlet and H.H. Fielding, Optical control of the rotational angular momentum of a molecular Rydberg wave packet, Phys. Rev. Lett. 91 243601 (2003)
2. R.S. Minns, J.R.R. Verlet, L.J. Watkins and H.H. Fielding, Observation and control of dissociating and autoionising Rydberg electron wave packets in NO, J. Chem. Phys., 119 5842 (2003)
3. E.D. Boléat and H.H Fielding, Optical control of the quantum-state distribution of vibrational wave packets using trains of phase-locked pulses, Mol. Phys. 103 491 (2005)
4. G.A. Worth, R.E. Carley and H.H. Fielding, Using photoelectron spectroscopy to unravel the excited state dynamics of benzene, Chem. Phys. 338 220-227 (2007)
5. A. Kirrander, H.H. Fielding and Ch. Jungen, Excitation, dynamics and control of rotationally autoionising Rydberg states of H₂ , J. Chem. Phys. 127 164301 (2007)
6. R. Patel, N.J.A. Jones and H.H. Fielding, Rotation-state selective field ionization of Rydberg states of NO, Phys. Rev. A. 76 043313 (2007)

Reviews

1. H.H. Fielding, Rydberg wave packets in molecules: From observation to control. Ann. Rev. Phys. Chem. 56 91-117 (2005).
2. R.E. Carley, E. Heesel and H.H. Fielding, Femtosecond lasers in gas phase chemistry Chem. Soc. Rev. 11 949-969 (2005).

This page last modified 20 October, 2009