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Rare earth photoionization study by the resonant microwave cavity technique |
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| Authors: | Y. Guyot, H. Loudyi, S. Kazanskii, J. C. G con, C. P drini,M. F. Joubert |
| Affiliation: | a LPCML, UMR 5620 CNRS, Universitè Lyon 1, Domaine Scientifique de la Doua, 10 rue Ampère, 69622, Villeurbanne cedex, France b S.I. Vavilov State Optical Institute, 12 Birzhevaya Line, St-Petersburg 199034, Russia |
| Abstract: | Photoconductivity spectra of rare earth-doped insulating materials are measured using the resonant microwave cavity method. This technique is based on the detection of the cavity Q-factor changes induced by irradiation of the sample (inserted in the cavity) by a pulsed tunable laser. Results obtained with Lu2(SiO4)O:Ce3+ and BaF2:Eu2+ are presented and discussed. Photoionization thresholds at 400 nm (3.1 eV) and 310 nm (4.0 eV) are measured for Lu2(SiO4)O:Ce3+ and BaF2:Eu2+, respectively. |
| Keywords: | Lu2(SiO4)O:Ce3+ BaF2:Eu2+ Photoionization Microwave cavity |
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