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Proceedings Paper

Inhomogeneous broadening of the dynamically split Kramers spectral line and up-conversion in the pair and quartet centers in CaF2:Nd3+
Author(s): Yurii V. Orlovskii; T. T. Basiev; Alexander G. Papashvili; Ivan N. Vorob'ev; O K Alimov; Vyacheslav V. Osiko; J. Heber
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Paper Abstract

The detailed site-selective and time-resolved fluorescence laser spectroscopy and kinetic measurements with high spectral and nanosecond temporal resolution were applied to analyze the M and N absorption bands at the 4I9/2(1) yields 4G5/2(1) crystal field (CF) transition in the CaF2:Nd3+ crystal at 4.2 K. It was found that at helium temperatures the dynamically split spectral line at the 4I9/2(1) yields 4G5/2(1) CF transition of coherently coupled Nd3+ ions in the pair M- and quartet N-centers is inhomogeneously broadened. Small variation of fluorescence lifetimes of the 4F3/2 and 4D3/2 levels due to small variation of distances between Nd3+ ions in the pairs was found. Approximately 1 percent variation of the Nd-Nd distance in the pair -center was determined form lifetime variation of the 4F3/2 manifold.

Paper Details

Date Published: 12 July 2002
PDF: 14 pages
Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); doi: 10.1117/12.475335
Show Author Affiliations
Yurii V. Orlovskii, General Physics Institute (Russia)
T. T. Basiev, General Physics Institute (Russia)
Alexander G. Papashvili, General Physics Institute (Russia)
Ivan N. Vorob'ev, General Physics Institute (Russia)
O K Alimov, Samarkand State University (Uzbekistan)
Vyacheslav V. Osiko, General Physics Institute (Russia)
J. Heber, Technische Univ. Darmstadt (Germany)


Published in SPIE Proceedings Vol. 4766:
XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions

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