POSTDOCTORAL POSITION, University of Nottingham, UK
A
postdoctoral position is available for one year from March 1st 2004 or soon
thereafter in Katharine Reid's group at the University of Nottingham. The
project will involve measuring photoelectron angular distributions (PADs)
following the excitation and then ionization of molecules with nanosecond,
picosecond or femtosecond laser pulses, using both time-of-flight (TOF)
photoelectron spectroscopy, and a new (working) velocity-map photoelectron
imaging spectrometer. These studies will be used to learn about both
photoionization dynamics and intramolecular dynamics of the prepared
excited state. In recent work we have shown that PADs from S1
p-difluorobenzene show a very strong dependence on the wavelength of the
ionizing light, which we have attributed to a shape resonance (this work is in
press). Such phenomena will be investigated in other molecules. We
have also observed the effect of intramolecular vibrational energy
redistribution on photoelectron spectra from S1 p-fluorotoluene (see JCP 117,
9099 (2002) and JPC 107, 7373 (2003)) and plan further experiments of this type,
including measurements of the PADs. The use of the two photoelectron
techniques (TOF and imaging) side-by-side will also enable extensive tests and
evaluation of the imaging technique, including effective means of dealing with
non-cylindrically symmetric distributions. Possibilities also exist for
theoretical work (see for example JCP 112, 3643 (2000); JCP 113, 1067 (2000)),
but the successful candidate will be primarily an experimentalist.
The nanosecond work will take place at the University of
Nottingham, the picosecond and femtosecond work at the Rutherford-Appleton
Laboratory (RAL) in Oxfordshire, with all expenses paid for travel between
Nottingham and RAL and for accommodation at RAL. Collaborative experiments
with Ivan Powis's group are also envisaged.
Applicants should have experience with lasers, vacuum
technology and electronics, should have (or be about to obtain) a PhD in
Chemical Physics, Physical Chemistry or Physics, and should send a cv and
arrange for two references to be sent to Dr. K.L. Reid at the address or email
address below by November 15th, 2003.
Further details can be obtained
from:
Dr. Katharine Reid
School of Chemistry
University of
Nottingham
Nottingham NG7 2RD, UK
tel: 44-115-951-3446, fax:
44-115-951-3562
email: [log in to unmask],
URL:
http://www.nottingham.ac.uk/chemistry/staff/reid.html