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Spontaneous and stimulated emission spectroscopy of a Nd3+-doped phosphate glass under wavelength selective pumping

AutorIparraguirre, I.; Azkargorta, J.; Balda, Rolindes ; Al-Saleh, M.; Fernández, Joaquín
Fecha de publicación2011
EditorOptical Society of America
CitaciónOptics Express 19(20): 19440-19453 (2011)
ResumenThe influence of the host matrix on the spectroscopic and laser properties of Nd3+ in a K-Ba-Al phosphate glass has been investigated as a function of rare-earth concentration. Site-selective time resolved laser spectroscopy and stimulated emission experiments under selective wavelength laser pumping show the existence of a very complex crystal field site distribution of Nd3+ ions in this glass. The peak of the broad stimulated 4F3/2→4I11/2 emission shifts in a non monotonous way up to 3 nm as a function of the excitation wavelength. This behavior can be explained by the relatively moderate inter-site energy transfer among Nd3+ ions found in this system and measured by using fluorescence line narrowing spectroscopy. The best slope efficiency obtained for the laser emission was 40%. © 2011 Optical Society of America.
URIhttp://hdl.handle.net/10261/50857
DOI10.1364/OE.19.019440
Identificadoresdoi: 10.1364/OE.19.019440
issn: 1094-4087
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