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Optical characterization of Nd (3+):AgBr.

D Bunimovich, L Nagli, A Katzir

    Applied Optics
    |February 12, 2008
    PubMed
    Summary

    Neodymium-doped silver bromide crystals exhibit unique luminescence properties. Researchers measured spectra and quantum yield, finding good agreement between experimental results and theoretical calculations using Judd-Ofelt analysis.

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    Area of Science:

    • Solid-state physics
    • Materials science
    • Luminescence

    Background:

    • Neodymium-doped materials are known for their optical properties.
    • Silver bromide is a potential host for luminescent dopants.

    Purpose of the Study:

    • Investigate the luminescence of neodymium-doped silver bromide crystals.
    • Characterize their optical and spectral properties.
    • Compare experimental findings with theoretical predictions.

    Main Methods:

    • Measurement of emission, excitation, and absorption spectra across visible and near-infrared ranges.
    • Determination of absolute luminescence quantum yield via comparison with a standard.
    • Application of Judd-Ofelt analysis for theoretical calculations.

    Main Results:

    • Detailed spectral data obtained over a wide temperature range.
    • Absolute luminescence quantum yield estimated.
    • Transition rates, branching ratios, and quantum efficiencies calculated.
    • Good agreement between experimental data and Judd-Ofelt analysis.

    Conclusions:

    • Neodymium-doped silver bromide exhibits promising luminescence characteristics.
    • Judd-Ofelt analysis accurately predicts the optical properties of these materials.
    • The study validates the use of silver bromide as a host for rare-earth doping.

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