1 August 1995 High-temperature spectral hole burning on samarium(II) in single crystals of the lead fluorohalide structure family and in thin films of calcium fluoride
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Optical Engineering, 34(8), (1995). doi:10.1117/12.201813
Abstract
When modern spectral hole burning applications for high-density information storage under noncryogenic temperatures are envisioned, it is necessary to develop new frequency-selective photoactive materials for this purpose. Mixed compounds of the PbFCI family, doped with samarium (II) ions, exhibit promising and true room-temperature hole burning capabilities. We investigate this class of systems (and related ones) by combining material synthesis and high-resolution spectroscopy. Whole groups of isomorphous crystals were synthesized with varying degrees of halide anion and/or cation substitutions. Thin films of fluoride-based materials were made in a laboratory-built molecular beam epitaxy system. An extended x-ray study, differential thermal analysis, luminescence, and Raman measurements allowed the characterization of the materials. Formal models were developed for both the inhomogeneous zero-phonon optical line shapes of the Samarium (II) and the time evolution of hole burning.
Hans Bill, Raivo Jaaniso, Hans Hagemann, Dominique Lovy, Alain Monnier, Marc Schnieper, "High-temperature spectral hole burning on samarium(II) in single crystals of the lead fluorohalide structure family and in thin films of calcium fluoride," Optical Engineering 34(8), (1 August 1995). http://dx.doi.org/10.1117/12.201813
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KEYWORDS
Hole burning spectroscopy

Crystals

Thin films

Calcium

Lead

Samarium

Data storage

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