Two-dimensional trapping of dipolar molecules in time-varying electric fields

The two dimensional trapping of neutral dipolar molecules in low and high field seeking states was analyzed. Slow molecules with longitudinal velocities of the order of 20 m/s were guided between four 50 cm long rods driven by an electric potential at few kHz frequency. An alternating electric field was periodically applied for 200 ms to discriminate the guided molecules from backgroung gas and dark counts. The results show that the molecules with transverse and longitudinal temperatures of 20 mK and 0.5 K were filtered out of a room temperature effusive source efficiently.