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Related Experiment Video

Updated: Jun 6, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
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The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Design and test of a simple high-temperature laser microrefractometer.

K G Müller, S Sainov, S Mittler-Neher

    Applied Optics
    |November 12, 2010
    PubMed
    Summary
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    A new laser microrefractometer design enables precise temperature-dependent refractive index measurements. Methylene iodide

    Area of Science:

    • Optical Physics
    • Materials Science
    • Metrology

    Background:

    • Accurate refractive index determination is crucial for optical materials characterization.
    • Temperature dependence significantly influences material optical properties.
    • Existing refractometry methods may lack precision or broad spectral applicability.

    Purpose of the Study:

    • To present a novel laser microrefractometer design optimized for temperature-dependent studies.
    • To measure the refractive index of methylene iodide across a wide temperature range and visible spectrum.
    • To analyze and quantify temperature-induced experimental errors in refractometry.

    Main Methods:

    • Design and construction of a specialized laser microrefractometer.
    • Measurement of methylene iodide refractive index from 22-92 °C.

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

    Published on: July 19, 2016

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    Last Updated: Jun 6, 2026

    The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
    09:10

    The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

    Published on: December 5, 2025

    Fabrication and Testing of Photonic Thermometers
    08:44

    Fabrication and Testing of Photonic Thermometers

    Published on: October 24, 2018

    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

  • Utilized laser wavelengths: 442, 488, 515, 543, 594, and 633 nm.
  • Detailed analysis of temperature-related experimental uncertainties.

    • Main Results:

    • Successfully measured the temperature-dependent refractive index of methylene iodide.
    • Data acquired across the visible spectrum (442-633 nm).
    • Comprehensive error analysis performed for temperature-dependent measurements.

    Conclusions:

    • The developed laser microrefractometer is suitable for accurate, temperature-dependent refractive index measurements.
    • Provides valuable optical property data for methylene iodide.
    • Highlights the importance of rigorous error analysis in temperature-dependent optical measurements.