Inhomogeneous broadening of the dynamically split Kramers spectral line and up-conversion in the pair and quartet centers in CaF2:Nd3+

Yurii V. Orlovskii; T. T. Basiev; Alexander G. Papashvili; Ivan N. Vorob'ev; O K Alimov; Vyacheslav V. Osiko; J. Heber

doi:10.1117/12.475335

12 July 2002 Inhomogeneous broadening of the dynamically split Kramers spectral line and up-conversion in the pair and quartet centers in CaF₂:Nd³⁺

Yurii V. Orlovskii, T. T. Basiev, Alexander G. Papashvili, Ivan N. Vorob'ev, O K Alimov, Vyacheslav V. Osiko, J. Heber

Author Affiliations +

Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475335
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation

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 ⁴I_9/2(1) yields ⁴G_5/2(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 ⁴I_9/2(1) yields ⁴G_5/2(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 ⁴F_3/2 and ⁴D_3/2 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 ⁴F_3/2 manifold.

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Yurii V. Orlovskii, T. T. Basiev, Alexander G. Papashvili, Ivan N. Vorob'ev, O K Alimov, Vyacheslav V. Osiko, and J. Heber "Inhomogeneous broadening of the dynamically split Kramers spectral line and up-conversion in the pair and quartet centers in CaF₂:Nd³⁺", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); https://doi.org/10.1117/12.475335

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