Excited state absorption of Sm sup 2+ in SrF sub 2

Conference · Sat Oct 01 04:00:00 EDT 1988 · AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA)

OSTI ID:5522636

Payne, S A; Chase, L L; Krupke, W F ^[1]

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1. University of California, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550 (US)

The excited state absorption spectrum of Sm{sup 2+} in SrF{sub 2} has been observed. The absorption peaks associated with the {sup 5}D{sub 0}(4f{sup 6}) excited state were found to be displaced by approximately 3000 cm{sup {minus}1} from the absorption bands arising from the {sup 7}F{sub 0}(4f{sup 6}) ground state (after taking the {sup 5}D{sub 0}--{sup 7}F{sub 0} energy separation into account). The observed peak separation is ascribed to the 4f--5d exchange interaction. From the measured peak positions, the exchange energy for the Sm{sup 2+} impurity was determined to be about the same order of magnitude as expected for the free ion. The implications of the properties of the excited state absorption bands for the performance of the SrF{sub 2}:Sm{sup 2+} laser are considered.

• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5522636
• Report Number(s): CONF-871147--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA) Journal Volume: 172:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION SPECTRA
ALKALINE EARTH METAL COMPOUNDS
CHARGED PARTICLES
DOPED MATERIALS
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONIC POTENTIAL
IONS
LASER MATERIALS
LASER SPECTROSCOPY
MATERIALS
SAMARIUM IONS
SPECTRA
SPECTROSCOPY
STRONTIUM COMPOUNDS
STRONTIUM FLUORIDES