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Optical Stark deceleration of nitric oxide and benzene molecules using optical lattices

R Fulton1, A I Bishop1, M N Shneider2 and P F Barker1

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We describe the deceleration of nitric oxide, benzene and xenon atoms in a molecular beam using one-dimensional pulsed optical lattices created by fields with intensities in the 1012 W cm−2 range. We show that for the same pulse duration and lattice intensity the velocity of the molecules can be controlled by tailoring the lattice velocity. By utilizing the time-dependent oscillatory motion of the molecules within the lattice, we demonstrate the deceleration of nitric oxide from an initial velocity of 400 m s−1 to a final velocity of 290 m s−1 in a single 5.8 ns pulse. Using higher intensities, we measure the deceleration of benzene molecules from 380 m s−1 to 191 m s−1, representing a 75% reduction in the kinetic energy within the lattice over the same duration.


PACS

33.57.+c Magnetooptical and electrooptical spectra and effects

03.75.Hh Static properties of condensates; thermodynamical, statistical and structural properties

37.10.Mn Slowing and cooling of molecules

37.10.De Atom cooling methods

37.20.+j Atomic and molecular beam sources and techniques

Subjects

Quantum gases, liquids and solids

Atomic and molecular physics

Dates

Issue 19 (14 October 2006)

Received 28 April 2006, in final form 19 June 2006

Published 25 September 2006



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