VACUUM ULTRAVIOLET LASER SPECTROSCOPY OF PERTURBED $^{2}\Delta$ STATES IN NO

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Date

1986

Authors

Hepburn, J. W
Hart, D.

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Ohio State University

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Abstract

We have used tunable, coherent vacuum ultraviolet radiation to excite NO in a supersonic molecular beam. The excitation laser is tunable between 140 nm and 170 nm, and in this range the (9,0) to (0,0) bands of the $B^{12} \Delta-X^{2}\Pi$ system can be excited. By using pulsed excitation of single ro-vibronic states of NO in a molecular beam, it is possible to unambiguously determine the collision-free excited state lifetimes for a wide range of NO excited states. We have studied Rydberg - Non-Rydberg interactions in the $B^{12}\Delta$ state using this method, and as well have investigated the onset of predissociation in the $B^{12}\Delta$ state.

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Address: Centre for Molecular Beams and Laser Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3Gl.
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