Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-419 - C4-422
DOI http://dx.doi.org/10.1051/jp4:19944100
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-419-C4-422

DOI: 10.1051/jp4:19944100

Approximate polarization selection rules for the 3P03H4 transition in Pr: β" alumina single crystals

P.R. NELSON, D.J. VICKERS and O.M. STAFSUDD

Department of Electrical Engineering, University of California, Los Angeles, 56-125B Engineering IV, Los Angeles, CA 90024-1594, U.S.A.


Abstract
Emission spectra of the 3P03H4 transition in Pr: β" alumina single crystals excited by both a broad-band blue source and by dye laser excitation at various wavelengths within the inhomogeneously-broadened 3H43P0 absorption line are considered. These spectra are strongly polarized, and are therefore due to Pr3+ ions in the Beevers-Ross (BR) sites. An approximately-axial model for the crystal field at a BR site predicts crystal field splitting of the 3H4 level and polarization selection rules which approximately match those we have observed.



© EDP Sciences 1994