Tp. Rakitzis et al., PHOTOLYSIS OF ICL CAUSES MASS-DEPENDENT INTERFERENCE IN THE CL(P-2(3 2)) PHOTOFRAGMENT ANGULAR-MOMENTUM DISTRIBUTIONS/, The Journal of chemical physics, 108(20), 1998, pp. 8291-8294
We have studied the photodissociation of ICl using linearly polarized
light at 532 nm. This wavelength excites several electronic states. Us
ing linearly polarized probe light, we have measured the angular momen
tum distributions of the Cl-35(P-2(3/2)) and Cl-37(P-2(3/2)) photofrag
ments, which are found to differ significantly. These distributions ar
e expressed in a multipole moment expansion having four terms. These t
erms can be classified as incoherent contributions from parallel and p
erpendicular transitions, and coherent contributions from interference
that arises from these interacting states. Analysis of these angular
momentum distributions using this formalism shows that the incoherent
contributions from the dissociating surfaces are mass independent, whe
reas the coherent contributions are mass dependent. (C) 1998 American
Institute of Physics. [S0021-9606(98)03720-9]