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Stark deceleration has been utilized for slowing and trapping several speciesof neutral, ground-state polar molecules generated in a supersonic beamexpansion. Due to the finite physical dimension of the electrode array andpractical limitations of the applicable electric fields, only molecules withina specific range of velocities and positions can be efficiently slowed andtrapped. These constraints result in a restricted phase space acceptance of thedecelerator in directions both transverse and parallel to the molecular beamaxis; hence, careful modeling is required for understanding and achievingefficient Stark decelerator operation. We present work on slowing of thehydroxyl radical (OH) elucidating the physics controlling the evolution of themolecular phase space packets both with experimental results and modelcalculations. From these results we deduce experimental conditions necessaryfor efficient operation of a Stark decelerator.Comment: 8 pages, 9 figure

the european physical journal. d, atomic, molecular and optical physics/the european physical journal. d, atomic, molecular, optical and plasma physics

Efficient Stark deceleration of cold polar molecules