A WAVE OPERATOR DESCRIPTION OF MOLECULAR PHOTODISSOCIATION PROCESSES USING THE FLOQUET FORMALISM

During the last few years, the Floquet matrix approach to the theory o f intense-field multiphoton dissociation processes has undergone a rev ival of interest which is due to the emergence of new powerful algorit hms within the complex quasivibrational energy formalism. The method p resented here shows that the Bloch wave operator theory is, in the fra mework of this theory, an efficient tool to select the active space wh ich participates principally in the dissociation process. An illustrat ive numerical example reveals that the one dimensional active space mo del, used mainly to reproduce cw laser experimental results, fails whe n the laser is tuned to bound state-bound state transitions.