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  • optical spectra  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of sol gel science and technology 19 (2000), S. 511-514 
    ISSN: 1573-4846
    Keywords: Nd3+ ion ; GeO2 glass ; sol-gel method ; optical spectra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Transparent Nd3+-doped GeO2 bulk gels and glasses were prepared by the sol-gel method, and their thermal and spectroscopic properties including electron spin resonance (ESR), absorption, fluorescence and upconversion fluorescence spectra were investigated. Absorption spectra characteristic of Nd3+ ions were clearly observed. Under 805 nm laser excitation, the glass showed upconversion fluorescence at 362, 389, 421, 430, 470, 534, 600, and 662 nm at room temperature.
    Type of Medium: Electronic Resource
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