|Title||Intensities and asymmetries of electronic Raman scattering in Thulium and Erbium phosphate|
|Publication Type||Journal Article|
|Year of Publication||1985|
|Authors||Becker, P. C., Norman E. Edelstein, G. M. Williams, Jerome J. Bucher, Richard E. Russo, J. Arnold Koningstein, Lynn A. Boatner, and Marvin M. Abraham|
|Secondary Title||Physics Review B|
|Keywords||intensities, intensity, raman, raman scattering, raman-scattering, scattering|
An investigation of the low-temperature electronic Raman scattering spectra of ErPO4 and TmPO4 has been carried out. The experimental intensities have been compared with the standard second-order theory of two-photon processes for both intermultiplet and intramultiplet transitions between individual crystal-field levels. Adequate agreement is found in the case of ErPO4, but serious discrepancies exist for TmPO4. It is shown that electronic Raman scattering is a sensitive technique for testing the Judd-Ofelt–type theories of two-photon processes in rare-earth crystals. Strong asymmetry, a characteristic feature of electronic Raman scattering, has been observed in several of the transitions.
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