%0 Journal Article %1 WOS:000074309500006 %A Amorim, HT %A de Araujo, MT %A Gouveia, EA %A Gouveia-Neto, AS %A Neto, JAM %A Sombra, ASB %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 1998 %I ELSEVIER SCIENCE BV %J JOURNAL OF LUMINESCENCE %K chalcogenide} glass; rare-earth; spectroscopy; {up-conversion; %N 4 %P 271-277 %R 10.1016/S0022-2313(98)00002-7 %T Infrared to visible up-conversion fluorescence spectroscopy in Er3+-doped chalcogenide glass %V 78 %X Infrared to visible frequency up-conversion fluorescence spectroscopy in erbium-doped chalcogenide glass samples excited at 1.06 and 1.54 mu m, is experimentally investigated. For 1.06 mu m pumping, two-photon absorption and phonon-assisted energy transfer account for the excitation of the H-2(11/2), S-4(3/2) and F-4(9/2) emitting levels, yielding intense green emission at 530 and 555 nm and low intensity light at 670 nm, respectively. For excitation at 1.54 mu m, much higher up-conversion efficiencies were obtained with the red emission signal around 670 nm presenting higher intensity than the green fluorescence signals. At this excitation wavelength the population of the H-2(11/2), S-4(3/2) and F-4(9/2) excited-state emitting levels is accomplished via energy-transfer and phonon-assisted decays. Saturation of the up-conversion efficiency for 1.54 mu m pumping was also observed. (C) 1998 Elsevier Science B.V. All rights reserved.

@article{WOS:000074309500006, abstract = {Infrared to visible frequency up-conversion fluorescence spectroscopy in erbium-doped chalcogenide glass samples excited at 1.06 and 1.54 mu m, is experimentally investigated. For 1.06 mu m pumping, two-photon absorption and phonon-assisted energy transfer account for the excitation of the H-2(11/2), S-4(3/2) and F-4(9/2) emitting levels, yielding intense green emission at 530 and 555 nm and low intensity light at 670 nm, respectively. For excitation at 1.54 mu m, much higher up-conversion efficiencies were obtained with the red emission signal around 670 nm presenting higher intensity than the green fluorescence signals. At this excitation wavelength the population of the H-2(11/2), S-4(3/2) and F-4(9/2) excited-state emitting levels is accomplished via energy-transfer and phonon-assisted decays. Saturation of the up-conversion efficiency for 1.54 mu m pumping was also observed. (C) 1998 Elsevier Science B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Amorim, HT and de Araujo, MT and Gouveia, EA and Gouveia-Neto, AS and Neto, JAM and Sombra, ASB}, biburl = {https://www.bibsonomy.org/bibtex/2ffa1e186c31cef31e10192ba8e1d8029/ppgfis_ufc_br}, doi = {10.1016/S0022-2313(98)00002-7}, interhash = {e6ebbdc6c15d2b9eeceb702bd9629b28}, intrahash = {ffa1e186c31cef31e10192ba8e1d8029}, issn = {0022-2313}, journal = {JOURNAL OF LUMINESCENCE}, keywords = {chalcogenide} glass; rare-earth; spectroscopy; {up-conversion;}, number = 4, pages = {271-277}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Infrared to visible up-conversion fluorescence spectroscopy in Er3+-doped chalcogenide glass}, tppubtype = {article}, volume = 78, year = 1998 }