9 April 2003 Laser action and infrared-to-visible upconversion processes of Nd3+ in yttrofluorite crystals
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Proceedings Volume 5131, Third GR-I International Conference on New Laser Technologies and Applications; (2003) https://doi.org/10.1117/12.513489
Event: Third GR-I International Conference on New Laser Technologies and Applications, 2003, San Diego, CA, United States
Abstract
Mixed fluoride crystals doped with rare-earth ions are interesting both as active media for lasers and as intermediate spectroscopic models between simple crystals and glasses. This behavior is related to the variety of optical centers that are present in these mixed systems, which also influences the stimulated-emission process. Cubic crystals of yttrofluorite (CaF2-YF3-NdF3) of space group Fm3m belong to this kind of multicenter system. Previous works on neodymium-doped yttrofluorite crystals containing high concentrations of yttrium fluoride and neodymium have shown that Nd3+ can generate stimulated emission at two wavelengths: 1054 nm and 1063 nm. In this work, together with the laser dynamics we present for the first time the study of upconversion processes that produce ultraviolet and visible emissions under lasing and nonlasing conditions in yttrofluorite mixed crystals with 15 wt% of YF3 and 1, 4, 8, and 16 wt% of NdF3.
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Rolindes Balda, Rolindes Balda, Ignacio Iparraguirre, Ignacio Iparraguirre, Jon Azkargorta, Jon Azkargorta, Joaquin R. Fernandez, Joaquin R. Fernandez, } "Laser action and infrared-to-visible upconversion processes of Nd3+ in yttrofluorite crystals", Proc. SPIE 5131, Third GR-I International Conference on New Laser Technologies and Applications, (9 April 2003); doi: 10.1117/12.513489; https://doi.org/10.1117/12.513489
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