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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 52, Iss. 11 — Nov. 1, 1962
  • pp: 1206–1206

Isotope Shift in the Spectrum of Mercury Hydride

TERENCE L. PORTER and SUMNER P. DAVIS  »View Author Affiliations

JOSA, Vol. 52, Issue 11, pp. 1206-1206 (1962)

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The isotope shift in the HgH spectrum for Hg198H-Hg200H has been measured for 698 lines in the A2II-X2Σ+ system. The variation of the isotope shift with rotational frequency of the line is different for the various branches of a band, and greatly exceeds the variation predicted by the usual rotational and vibrational mass effects alone. This phenomenon is a consequence of the different nuclear volumes of the mercury isotopes. The results are evidence that the total electron probability density at the mercury nucleus increases with rotational frequency at a faster rate for the ground state than for the excited state.

TERENCE L. PORTER and SUMNER P. DAVIS, "Isotope Shift in the Spectrum of Mercury Hydride," J. Opt. Soc. Am. 52, 1206-1206 (1962)

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  1. T. L. Porter, J. Opt. Soc. Am. 52, 1201 (1962).
  2. G. Herzberg, Molecular Spectra and Molecular Structure, Spectra of Diatomic Molecules (D. van Nostrand Company, Inc., Princeton, New Jersey, 1950), 2nd ed., Vol. 1, pp. 141f, 162f, 192f.
  3. H. Kopfermann, Nuclear Moments (English translation: Academic Press Inc., New York, 1958), pp. 167f.
  4. S. Mrozowski, Z. Physik 72, 776 (1931); 95, 524 (1935); 99, 236 (1936).
  5. S. Mrozowski, Phys. Rev. 76, 1820 (1949).
  6. Hg198 was obtained on loan from the Oak Ridge National Laboratory, Oak Ridge, Tennessee.

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