Upconversion violet emission in diluted Er:YAG crystals

Serban Georgescu; Voicu Lupei; A. Petraru; Claudiu Hapenciuc; Cristian Florea; C. Naud; C. Porte

doi:10.1117/12.378663

23 February 2000 Upconversion violet emission in diluted Er:YAG crystals

Serban Georgescu, Voicu Lupei, A. Petraru, Claudiu Hapenciuc, Cristian Florea, C. Naud, C. Porte

Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378663
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania

Abstract

In this paper we discuss the upconversion processes responsible for violet luminescence from the Erbium levels ²P_3/2 and ²H2_9/2 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.

Citation Download Citation

Serban Georgescu, Voicu Lupei, A. Petraru, Claudiu Hapenciuc, Cristian Florea, C. Naud, and C. Porte "Upconversion violet emission in diluted Er:YAG crystals", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378663

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