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Related Experiment Video

Updated: Jun 20, 2026

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
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Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing

Published on: June 9, 2023

On refractory oxide crystals for continuous-wave tunable lasers.

Y Chen, R Gonzalez

    Optics Letters
    |September 3, 2009
    PubMed
    Summary
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    Trapped-hole centers hinder tunable laser action in irradiated oxide crystals. Thermochemically reduced crystals offer a more promising alternative for visible laser applications.

    Area of Science:

    • Solid-state physics
    • Laser science
    • Materials science

    Background:

    • Continuous-wave tunable lasers are crucial for various spectroscopic and optical applications.
    • Irradiated oxide crystals are often used as laser gain media, but radiation-induced defects can degrade performance.
    • Trapped-hole centers are a specific type of defect that can absorb or scatter laser light.

    Purpose of the Study:

    • To investigate the detrimental effects of trapped-hole centers on continuous-wave tunable-laser action in irradiated oxide crystals.
    • To explore alternative oxide crystal preparations that mitigate these detrimental effects.

    Main Methods:

    • Experimental investigation of laser performance in irradiated oxide crystals.
    • Characterization of trapped-hole center formation and properties.

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    Last Updated: Jun 20, 2026

    Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
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    Published on: June 9, 2023

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  • Evaluation of thermochemically reduced oxide crystals as potential laser gain media.

    • Main Results:

    • Trapped-hole centers were confirmed to be detrimental to continuous-wave tunable-laser operation in the visible region.
    • These defects lead to increased optical losses and reduced laser efficiency.
    • Thermochemically reduced oxide crystals demonstrated improved laser performance compared to irradiated ones.

    Conclusions:

    • Minimizing trapped-hole center concentration is essential for achieving efficient tunable-laser action in oxide crystals.
    • Thermochemical reduction presents a viable strategy for preparing oxide crystals with enhanced laser properties.
    • Future research should focus on optimizing reduction processes for specific oxide laser applications.