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Title: Mid-infrared emission and quantitative analysis of energy transfer processes in Er{sup 3+} doped oxyfluogermanate glasses

Oxyfluogermanate glasses with good thermal stability were prepared by melt-quenching method. The investigation of 2.7 μm fluorescence spectra and energy transfer mechanism was performed pumped by an 808 nm laser diode. The 2.7 μm radiative transition probability and emission cross section are 32.62 s{sup −1} and 12.88 × 10{sup −21} cm{sup 2}, respectively. The energy transfer parameters between {sup 4}I{sub 11/2} and {sup 4}I{sub 13/2} levels were calculated by Inokuti-Hirayama and Yokota-Tanimoto's model to further elucidate 2.7 μm fluorescent behaviors. It is found that the energy transfer mechanism among Er{sup 3+} is mainly dominated by dipole-dipole interactions. Results indicate that the prepared oxyfluogermanate glass is a promising candidate for mid-infrared laser applications.
Authors:
; ; ; ; ; ;  [1]
  1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 (China)
Publication Date:
OSTI Identifier:
22490720
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CROSS SECTIONS; DIPOLES; DOPED MATERIALS; ENERGY TRANSFER; ERBIUM IONS; FLUORESCENCE; FLUORESCENCE SPECTROSCOPY; GLASS; LASERS; PROBABILITY; QUENCHING