TY - JOUR KW - Raman KW - Raman scattering KW - Raman-scattering KW - Scattering KW - Intensities KW - Intensity AU - P C Becker AU - Norman E Edelstein AU - G M Williams AU - Jerome J Bucher AU - Richard E Russo AU - J. J Arnold Koningstein AU - Lynn A Boatner AU - Marvin M Abraham AB -

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.

BT - Physics Review B DA - 06/1985 DO - 10.1103/PhysRevB.31.8102 IS - 12 LA - eng LB - Laser N1 -

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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.

PY - 1985 SP - 8102 EP - 8110 T2 - Physics Review B TI - Intensities and asymmetries of electronic Raman scattering in Thulium and Erbium phosphate VL - 31 ER -