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Stimulated emission and tunable gain from Rh(2+) ions in RbCaF(3) crystals.

R C Powell, G J Quarles, J J Martin

    Optics Letters
    |September 3, 2009
    PubMed
    Summary

    Researchers observed stimulated emission in Rhodium-doped Calcium Fluoride (RbCaF(3):Rh(2+)) crystals. This finding opens possibilities for tunable laser applications in the 700-720 nm range.

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    Area of Science:

    • Solid-state physics
    • Laser science
    • Materials science

    Background:

    • Stimulated emission is a fundamental process in laser operation.
    • Rhodium-doped crystals are investigated for their potential optical properties.

    Purpose of the Study:

    • To investigate the potential for stimulated emission in RbCaF(3):Rh(2+) crystals.
    • To characterize the optical gain properties of these materials.

    Main Methods:

    • Observation of power-dependent fluorescence lifetime shortening.
    • Analysis of emission band narrowing with a distinct threshold.
    • Measurement of single-pass gain.

    Main Results:

    • Stimulated emission was successfully detected in RbCaF(3):Rh(2+) crystals.

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  • A power threshold for stimulated emission was identified.
  • Tunable single-pass gain was achieved between 700 and 720 nm.

    • Conclusions:

    • RbCaF(3):Rh(2+) crystals exhibit stimulated emission properties.
    • These crystals demonstrate potential for tunable laser sources.
    • Further research may explore applications in optical devices.