MBER SPECTROSCOPY OF IR LASER EXCITED VIBRATINAL STATES
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Date
1983
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Ohio State University
Abstract
Conventional molecular beam electric resonance spectroscopy has been carried out on molecules which have been excited with a color center laser. Initial experiments were done on the C-H stretch of HCN at $3300 cm^{-1}$. A Burleigh FCL-20 laser excited the molecular beam either following the A field of immediately after the beam source. Approximately 10\% of the available molecules were excited on a single pass. The laser was used without stabilization and radio frequency transitions were obtained in the excited state by scanning the RF frequency more rapidly than the laser drifted. Signal averaging was used to accumulate the rapid scans and sensitivity of excited state measurements were identical to ground state results. For HCN $ \mu_{v}/\mu_{gs} = 1.0108$ and $ eqQ_{v}/eqQ_{gs} = .9901$.
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Author Institution: Department of Chemistry, University of Rochester