Accession Number:

AD0707380

Title:

ABOSPRTION AND FLUORESCENCE SPECTRA OF TRIPLY IONIZED HOLMIUM IN CALCIUM TUNGSTATE,

Descriptive Note:

Corporate Author:

HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s):

Report Date:

1970-03-01

Pagination or Media Count:

42.0

Abstract:

The energy levels of the quintuplet I ground term of Ho3 in single crystals of CaWO4 were established by absorption and fluorescence spectra measurements. The measurements were made using crystals at temperatures near 2, 20, and 85K. Most of the observed transitions can be accounted for by the electric dipole selection rules. Magnetic dipole selection rules cannot be ruled out for some of the lower energy transitions, however. Calculations were made to determine the effects of the crystalline host material on the Ho3 energy levels. An effective Hamiltonian of the form suggested by Karayianis was diagonalized in a basis of Russell-Saunders wave functions to obtain the calculated energy levels and wave functions for Ho3. Such a calculation takes into account the complete J-mixing of the states within the ground term and is equivalent to determining the effects of the spin-orbit interaction to better than second-order. In the calculation, the best agreement between the theoretical and experimental energy levels gives an rms deviation of 10cm. Author

Subject Categories:

  • Lasers and Masers
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE