Phys. Rev. Lett. 93, 020406 (2004) [4 pages]Microstructured Switchable Mirror for Polar MoleculesReceived 27 January 2004; published 9 July 2004 By miniaturizing electrode geometries high electric fields can be produced using modest voltages. A planar array of 20 μm wide gold electrodes, spaced 20 μm apart, is made on a sapphire substrate. A voltage difference of up to 350 V is applied to adjacent electrodes, generating an electric field that decreases exponentially with distance from the substrate. This microstructured array can be used as a mirror for polar molecules and can be rapidly switched on and off. This is demonstrated by retroreflecting a beam of state-selected ammonia molecules with a forward velocity of about 30 m/s. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.020406
DOI:
10.1103/PhysRevLett.93.020406
PACS:
03.75.Be, 33.55.Be, 33.80.Ps, 39.10.+j
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