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Proceedings Paper

Optical superradiance in Van-Vleck paramagnets
Author(s): Alexei A. Kalachev; Vladimir A. Zuikov; Vitaly V. Samartsev; Anatoly M. Shegeda
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Paper Abstract

The paper describes experimental investigations of two-color optical super-radiance (SR) in LaF3:Pr3+ crystal. Optical excitation was made on the transition 3P0- 3H4(0) at liquid helium temperature. When the power of the pumping 10ns-pulse was higher than a certain threshold, the resonant medium emitted an optical SR pulse on 3P0-3H4(0) transition with a duration of 8-10 ns in the direction of the pumping pulse delayed in time by 12-15 ns with respect to the pumping pulse. When the peak power of the pumping pulse increases up to 40 kW, an SR pulse was also observed for the 3P0-3H6(1) transition. The delay time of this pulse was about 30 ns. Thus, the two-color SR in the employed crystal was observed.

Paper Details

Date Published: 12 July 2002
PDF: 5 pages
Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); doi: 10.1117/12.475339
Show Author Affiliations
Alexei A. Kalachev, Kazan Physical-Technical Institute (Russia)
Vladimir A. Zuikov, Kazan Physical-Technical Institute (Russia)
Vitaly V. Samartsev, Kazan Physical-Technical Institute (Russia)
Anatoly M. Shegeda, Kazan Physical-Technical Institute (Russia)


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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