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dc.creatorWood, D. L.en_US
dc.creatorKaiser, W. K.en_US
dc.creatorGarrett, C. G. B.en_US
dc.date.accessioned2006-06-15T13:08:36Z
dc.date.available2006-06-15T13:08:36Z
dc.date.issued1961en_US
dc.identifier1961-F-2en_US
dc.identifier.urihttp://hdl.handle.net/1811/8067
dc.descriptionAuthor Institution: Bell Telephone Laboratories, Inc.en_US
dc.description.abstractDivalent rate earth ions in the $CaF_{2}$ lattice give rise to both broad band and sharp line absorption and emission (fluorescence) spectra. One of those systems, $CaF_{2}:Sm^{2+}$ shows very intense luminescence and has been successfully used as an optical maser material. The broad absorption bands for $CaF_{2}:Sm^{2+}$ break up into many components at low temperatures, and the oscillator strengths of the component lines are of the order of $10^{-3}$. These lines therefore must be due to parity allowed 4f-5d transitions. Other lines have oscillator strengths in the range from $10^{-4}$ to $10^{-6}$ and are due to 4f-4f transitions which are parity forbidden. The results of new measurements on the spectrum of $CaF_{2}:Sm^{2+}$ will be discussed in terms of the crystal field model of the rare earth ion in the lattice. Some remarks about the spectra of $Eu^{2+}$ and $Yb^{2+} CaF_{2}$ will also be include.en_US
dc.format.extent79181 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleELECTRONIC SPECTRA OF DIVALENT RARE EARTH IONS IN $CaF_{2}$en_US
dc.typearticleen_US


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