Výsledky vyhledávání

What may be expected from the 'microwave resonant cavity technique' applied to rare‐earth‐doped insulating materials?

Autor: S. A. Kazanskii, Marie-France Joubert, J.C. Gâcon, H. Loudyi, C. Pedrini, Yannick Guyot

Publikováno v: physica status solidi c. 4:784-788

The principle of measurements using the “microwave resonant cavity technique” applied to rare-earth-doped insulating materials is reviewed and the physical nature of the expected signals is discussed. Experimental results concerning both single c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6562094fa41611d0e3503f7f965de268
https://doi.org/10.1002/pssc.200673875

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Rare earth photoionization study by the resonant microwave cavity technique

Autor: C. Pédrini, S. Kazanskii, Yannick Guyot, Marie-France Joubert, J.C. Gâcon, H. Loudyi

Publikováno v: Radiation Measurements. 38:753-757

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae2c3496754f283ebeae6b536745cf0e
https://doi.org/10.1016/j.radmeas.2004.03.012

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Rare earth concentration and localization in Nd3+ and Er3+ doped fibre amplifiers

Autor: Bernard Jacquier, Herve Fevrier, J.C. Gâcon, J. F. Marcerou, A.M. Briançon, J. Augé

Publikováno v: Journal of Luminescence. 45:108-110

In the process of optimising the gain for rare earth doped fibre amplifiers, we have studied the modification of the fluorescence properties with composition of the host core glass and with rare earth concentration. We propose an original method for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::983839b42e7d046e5c9360d3933c6add
https://doi.org/10.1016/0022-2313(90)90119-v

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Addition de photons par transfert d'énergie et absorption dans l'état excité dans les matériaux MClF: Sm+2 (M = Ba, Sr)

Autor: Bernard Jacquier, J.C. Gâcon, B. Bouattou, J.L. Jouvray

Publikováno v: Journal de Physique. 47:279-290

Under selective pulsed excitation into the first metastable excited state 5 D 0 of the Sm +2 ion embedded in BaCIF and SrCIF crystals with different concentrations (0.1‰, 1‰, 5‰), we have observed anti-Stokes emissions originating from the 5 D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4907559746332f58c443f7b51c19eb47
https://doi.org/10.1051/jphys:01986004702027900

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Synthesis of ternary fluorides BaCaLn2F10 - Eu2+ luminescence in BaCaLu2F10

Autor: J.C. Cousseins, Georges Boulon, A. Védrine, J.C. Gâcon, F.K. Fong, P. Valon

Publikováno v: Materials Research Bulletin. 11:43-48

A new family of the ternary BaCaLn 2 F 10 (Ln=Lu, Yb, Tm, Er, Ho, Dy) system has been prepared. Emission and excitation spectra of Eu 2+ doped BaCaLu 2 F 10 are presented and discussed.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2f384dd8e7e6e71af85c999e1fbbf3f
https://doi.org/10.1016/0025-5408(76)90212-9

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Some aspects of the Sm2+ centre relaxation in BaClF

Autor: J. Sériot, F. Gaume-Mahn, J.C. Gâcon, J. C. Souillat, B. Di Bartolo

Publikováno v: Journal of Luminescence. :244-248

The de-excitation mechanisms of Sm2+ centres in BaClF are investigated. It is shown that the lower-lying 4f5-5d states play an important role in the radiationless processes connecting the 4f6 5DJ multiplets. The temperature dependence of the 5D2 and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4b64d91f997435c5aa9a2a0588ba0c7
https://doi.org/10.1016/0022-2313(79)90113-3

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Direct two-photon absorption of Gd(OH)3 and GdCl3 in an applied magnetic field

Autor: Rachid Mahiou, Bernard Jacquier, Rufus L. Cone, J.C. Gâcon, Y. Salem, C. Linares

Publikováno v: Journal of Luminescence. 38:258-260

Polarized two-photon excitation spectra of the UV fluorescence of Gd(OH)3 have been investigated at very low temperatures with an applied magnetic field. The anomalously high intensities as well as polarization dependence of 6P 7 2 Stark components a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fecb6480fddce1a12f8e1ffa69acf852
https://doi.org/10.1016/0022-2313(87)90121-9

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Radiationless Processes in BaClF:Sm2+

Autor: B. Di Bartolo, J.C. Gâcon, J. Sériot, J. C. Souillat, F. Gaume-Mahn

Publikováno v: The Rare Earths in Modern Science and Technology ISBN: 9781461340089
The Rare Earths in Modern Science and Technology

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75709504790b2b5b6de12c8cd07af1e7
https://doi.org/10.1007/978-1-4613-4006-5_80

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