Eur. Phys. J. D 44, 57-63 (2007)
https://doi.org/10.1140/epjd/e2007-00184-7

Photofragment space distribution in the photodissociation of NaI in the spectral range 315–370 nm: the role of molecular axis rotation

¹ Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 Saint-Petersburg, Russia
² Institute of Atomic Physics, Technical University of Berlin, 10623 Berlin, Germany

Corresponding author: ^a asv@pms.ioffe.ru

Received: 12 December 2006
Revised: 22 March 2007
Published online: 6 June 2007

Abstract

The first determination of translational anisotropy parameters β in the photodissociation of NaI molecules in the spectral range 315–370 nm is reported. The anisotropy parameters were determined by the analysis of Doppler resolved absorption profiles of Na(²S_1/2) atoms produced in the photodissociation of NaI by linearly polarized light. The profiles were recorded for two orientations of the photolysis light: parallel and perpendicular to the direction of the probe beam. The value of the parameter β was obtained from a simultaneous fit of the profiles. The role of the rotation of the parent molecules on the branching ratio between parallel and perpendicular transitions in NaI during dissociation is discussed.