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Updated: Jun 16, 2026

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

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Emission polarization study on quartz and calcite.

|February 2, 2010

Summary

Spectral emission polarization in quartz and calcite is wavelength-dependent. Narrower spectral bands show higher polarization, suggesting potential for remote sensing rock discrimination using texture.

Area of Science:

Geophysics
Mineral Physics
Remote Sensing

Background:

Emission polarization of minerals is influenced by their optical properties.
Understanding spectral polarization is crucial for remote sensing applications.

Purpose of the Study:

To calculate and analyze the spectral emission polarization of quartz and calcite.
To investigate the wavelength-dependence of polarization for remote sensing potential.

Main Methods:

Utilized Fresnel's equations with complex refractive indices for quartz and calcite.
Calculated polarization for observation angles of 20 and 70 degrees.
Performed field measurements using a broadband infrared radiometer.

Main Results:

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Last Updated: Jun 16, 2026

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Polarization is highly wavelength-dependent for quartz and calcite.
Narrow spectral bands (1.5 microm) show significantly higher polarization than broad bands (6 microm).
Field measurements of quartz-rich rocks yielded ~2% polarization.

Conclusions:

Wavelength selection is critical for maximizing emission polarization measurements.
Emission polarization can potentially serve as a remote sensing tool for rock texture discrimination.