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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
Emission Spectra02:39

Emission Spectra

When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.

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Related Experiment Video

Updated: Jun 22, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Athermal emission in Yb,Er:glass.

John Koroshetz, Brian Brickeen, Stephan Fahr

    Optics Express
    |June 24, 2009
    PubMed
    Summary
    This summary is machine-generated.

    We studied ytterbium (Yb3+) and erbium (Er3+) doped glass for eye-safe lasers. Selecting the right wavelength minimizes temperature effects on laser output.

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    Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

    Published on: April 14, 2020

    Area of Science:

    • Spectroscopy
    • Laser Physics
    • Materials Science

    Background:

    • Fiber lasers and amplifiers are crucial for various applications.
    • Temperature fluctuations can significantly impact laser performance and stability.
    • Yb3+ and Er3+ co-doped glasses are promising gain media for eye-safe lasers.

    Purpose of the Study:

    • To investigate the temperature-dependent spectroscopic properties of Yb3+ and Er3+ co-doped glass.
    • To determine the feasibility of achieving temperature-independent laser operation in the eye-safe spectral region.
    • To identify optimal operating wavelengths for stable laser performance.

    Main Methods:

    • Spectroscopic measurements were performed on Yb3+ and Er3+ co-doped glass samples.
    • Temperature dependence of absorption and emission spectra was analyzed.
    • Gain characteristics were evaluated across different temperatures.

    Main Results:

    • The spectroscopic properties of Yb3+ and Er3+ ions in the glass host were characterized.
    • Significant temperature dependence was observed in the gain spectra.
    • A specific operating wavelength range was identified where the laser output shows minimal sensitivity to temperature variations.

    Conclusions:

    • Yb3+ and Er3+ co-doped glass is a viable material for eye-safe lasers.
    • Careful selection of the operating wavelength is critical for achieving temperature-stable laser output.
    • This research paves the way for developing robust and reliable eye-safe laser systems.