Phonon physics in ruby studied by optical pumping and luminescence

Two examples are treated of nonequilibrium phonons in ruby as studied with optical pumping for generation and luminescence for detection. The first example concerns nonequilibrium 29 cm - 1 and near-zone-boundary phonons generated in the nonradiative decay from higher multiplets to 2 A ¯ ( 2 E ) and...

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Bibliographic Details
Published in:Journal of luminescence 2007-07, Vol.125 (1), p.55-59
Main Author: de Wijn, H.W.
Format: Article
Language:English
Subjects:
Coherent phonons
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Non-equilibrium phonons
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
Spin-lattice relaxation
Stimulated emission
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Summary:Two examples are treated of nonequilibrium phonons in ruby as studied with optical pumping for generation and luminescence for detection. The first example concerns nonequilibrium 29 cm - 1 and near-zone-boundary phonons generated in the nonradiative decay from higher multiplets to 2 A ¯ ( 2 E ) and E ¯ ( 2 E ) . The second example shows that coherent phonons are produced by stimulated emission over the Zeeman transition within the E ¯ ( 2 E ) metastable doublet.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2006.08.024