Site-selective spectroscopy of Ho3+ ions in CsCdBr3 crystals.
作者： Marjorie Mujaji , G. D. Jones , R. W. G. Syme
关键词: Excitation 、 Inorganic compound 、 Fluorescence 、 Ion 、 Holmium 、 Optics 、 Materials science 、 Spectroscopy 、 Atomic physics 、 Photon upconversion 、 Photoluminescence
摘要: With the use of laser-selective excitation, an extensive set energy levels has been established for principal Ho 3+ dimer center in CsCdBr 3 :Ho crystals. The observed splittings around 2 cm -1 transitions to or from assigned as having γ symmetry under C 3υ is indicative deviations ion-site exact symmetry. As previously studied Er pair , exhibits strong upconversion fluorescence with up one-third intensity direct cw laser excitation 5 I 8 → S transition green and one-fifteenth comparable F red
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