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Modification of erbium photoluminescence excitation spectra for the emission wavelength 1.54 μm in mesoscopic structures |
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| Authors: | N.V. Gaponenko D.M. Unuchak G.K. Malyarevich M.V. Stepikhova A.P. Stupak M.I. Samoilovich |
| Affiliation: | a Belarusian State University of Informatics and Radioelectronics, P. Browka Str. 6, Minsk 220013, Belarus b Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, Russia c Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia d Institute of Molecular and Atomic Physics, Praspekt Nezaleshnasti, 70, 220072 Minsk, Belarus e Central Research Technological Institute ‘‘Technomash’’, 4 I. Franko Street, 121108 Moscow, Russia |
| Abstract: | Photoluminescence excitation (PLE) spectra for the emission wavelength 1.54 μm were studied for erbium-doped xerogels embedded in artificial opals and porous anodic alumina films. Opals were chosen with photonic stop-band in green spectral range, where excitation of 1.54 μm occurs most efficiently. In comparison to the structure erbium-doped titania xerogel/porous anodic alumina/silicon the photoluminescence excitation spectra for 1.54 μm emission wavelength significantly changes for the same xerogels embedded in artificial opals. Enhancement of erbium-related 1.54 μm emission was observed from the structure Fe2O3 xerogel/porous anodic alumina fabricated on silicon, having some incompletely anodized aluminium, under excitation with either the lasing source at 532 nm or xenon lamp. Evident difference in PLE spectra for erbium doped TiO2 and Fe2O3 xerogels in porous anodic alumina is observed. |
| Keywords: | Erbium Photoluminescence Excitation Opal Porous anodic alumina |
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