STARK EFFECTS IN THE $\nu_{3}$ BAND OF $HCN^{*}$
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Date
1960
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Publisher
Ohio State University
Abstract
“A detailed study of the effects of a uniform electric field upon the $\nu_{3}$ band of HCN has been made. With a 120 kV/cm electric field and $0.005 cm^{-1}$ spectral resolution the m-substructure of the lines with $J^{\prime} \leq 3$ is completely resolved. With high fields, the R(0) line shifts by as much as $0.9 cm^{-1}$. Conventional perturbation theory is not adequate in this case because the perturbing energies are larger than the rotational terms whenever the splittings are large enough to be resolved. An exact solution is $available^{1}$ and is found to account for the experimental results. The data allow for a determination of the dipole moment of the molecule when it is in the excited vibrational state---an increase of approximately 2\% above the ground state value is indicated.”
Description
$^{*}$ Supported by the Air Force Cambridge Research Center. $^{\dagger}$ Corning Glass Works Foundation Fellow. $^{1}$ P. Kusch and V. Hughes, Handbuch dev Physik XXXVII/1, 141.
Author Institution: Department of Physics, University of Michigan
Author Institution: Department of Physics, University of Michigan