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Proceedings Paper

Upconversion violet emission in diluted Er:YAG crystals
Author(s): Serban Georgescu; Voicu Lupei; A. Petraru; Claudiu Hapenciuc; Cristian Florea; C. Naud; C. Porte
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Paper Abstract

In this paper we discuss the upconversion processes responsible for violet luminescence from the Erbium levels 2P3/2 and 2H29/2 in diluted Er:YAG crystals, excited with pulsed as well with cw lasers. Besides the general need for new spectroscopic data concerning laser materials, the interest for this study is generated by the fact that energy levels of very different quantum efficiencies can produce, function of the pumping conditions, fluorescence spectra of comparable intensities or even with reversed intensity ratio.

Paper Details

Date Published: 23 February 2000
PDF: 10 pages
Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); doi: 10.1117/12.378663
Show Author Affiliations
Serban Georgescu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Voicu Lupei, National Institute for Lasers, Plasma and Radiation Physics (Romania)
A. Petraru, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Claudiu Hapenciuc, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Cristian Florea, Ecole Superieure d'Ingenieurs en Electrotechnique et Electronique (France)
C. Naud, Univ. Paris VI (France)
C. Porte, Univ. Paris VI (France)


Published in SPIE Proceedings Vol. 4068:
SIOEL '99: Sixth Symposium on Optoelectronics
Teodor Necsoiu; Maria Robu; Dan C. Dumitras, Editor(s)

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