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Related Experiment Video

Updated: Jun 16, 2026

A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements
06:06

A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements

Published on: July 19, 2016

Thermoelectrically Cooled GaAIAs Laser Illuminator.

D G Herzog, H Kressel

    Applied Optics
    |January 23, 2010
    PubMed
    Summary
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    Gallium Aluminum Arsenide (GaAlAs) injection lasers offer selectable wavelengths, enabling optimal refrigeration. This study details thermoelectric cooling solutions for these advanced lasers.

    Area of Science:

    • Semiconductor Lasers
    • Optoelectronics
    • Thermoelectric Cooling

    Background:

    • Traditional Gallium Arsenide (GaAs) lasers are limited by operating temperatures dictated by wavelength.
    • Advances in Gallium Aluminum Arsenide (GaAlAs) lasers provide selectable wavelengths (0.8-0.9 micrometers) and high efficiency.

    Purpose of the Study:

    • To discuss refrigeration considerations for GaAlAs injection lasers.
    • To present the selection criteria for thermoelectric refrigerators.
    • To address optical-electronic interface challenges for GaAlAs lasers.

    Main Methods:

    • Selection of appropriate thermoelectric refrigerator components.
    • Design and integration of optical-electronic interfaces.
    • Characterization of laser arrays and a complete illuminator system.

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    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
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    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

    Published on: April 16, 2017

    Related Experiment Videos

    Last Updated: Jun 16, 2026

    A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements
    06:06

    A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements

    Published on: July 19, 2016

    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
    09:01

    High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

    Published on: April 16, 2017

    Main Results:

    • GaAlAs lasers allow for optimized refrigeration system design.
    • Successful solutions for optical-electronic interface problems were developed.
    • The performance of individual laser arrays and a thermoelectrically cooled illuminator was documented.

    Conclusions:

    • Thermoelectric cooling is a viable and effective method for GaAlAs lasers.
    • The developed GaAlAs illuminator demonstrates practical application of optimized cooling.
    • This work facilitates the use of advanced laser systems in temperature-sensitive applications.