Laser control of complete vibrational transfer in Na$_2$ using resonance coalescence
Abstract
With a specific choice of laser parameters resulting into a so-called exceptional point in the wavelength-intensity plane, it is possible to produce the coalescence of two Floquet resonances describing the photodissociation of the molecule Na, which is one of the candidates for molecular cooling. Appropriately tuning laser parameters, following a contour around the exceptional point, the resonances exchange their labels. This represents a laser control of the vibrational transfer from one field-free state to another, through an adiabatic transport involving these resonances. The proportion of undissociated molecules at the end of the pulse is checked through Floquet adiabatic theory. A vibrational cooling scenario can be proposed based on a complete vibrational transfer which is predicted, with only 20 percent of molecules undergoing dissociation.
Keywords
Cite
@article{arxiv.1011.2562,
title = {Laser control of complete vibrational transfer in Na$_2$ using resonance coalescence},
author = {Osman Atabek and Roland Lefebvre and M. Lepers and Amine Jaouadi and Olivier Dulieu and V. Kokoouline},
journal= {arXiv preprint arXiv:1011.2562},
year = {2010}
}