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We examine the prospects for utilizing the optical bichromatic force (BCF) togreatly enhance laser deceleration and cooling for near-cycling transitions insmall molecules. We discuss the expected behavior of the BCF in near-cyclingtransitions with internal degeneracies, then consider the specific example ofdecelerating a beam of calcium monofluoride molecules. We have selected CaF asa prototype molecule both because it has an easily-accessible near-cyclingtransition, and because it is well-suited to studies of ultracold molecularphysics and chemistry. We also report experimental verification of one of thekey requirements, the production of large bichromatic forces in a multi-levelsystem, by performing tests in an atomic beam of metastable helium.

Prospects for rapid deceleration of small molecules by optical bichromatic forces