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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

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Mariner 9 michelson interferometer.

R Hanel, B Schlachman, E Breihan

|February 2, 2010

Summary

This summary is machine-generated.

The Mariner 9 Michelson interferometer captured Mars' thermal emission spectra, providing valuable data for planetary atmospheric studies. Its innovative design and calibration ensured reliable measurements of Mars' surface and atmospheric conditions.

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Area of Science:

Planetary Science
Infrared Spectroscopy
Atmospheric Remote Sensing

Background:

Understanding Mars' atmospheric composition and thermal structure is crucial for planetary science.
Previous missions provided limited spectral data, necessitating advanced instrumentation.

Purpose of the Study:

To measure the thermal emission spectrum of Mars using a Michelson interferometer.
To analyze the spectral data for atmospheric and surface properties.
To demonstrate the performance of the novel interferometer design.

Main Methods:

Utilized the Michelson interferometer aboard the Mariner 9 spacecraft.
Acquired spectral data in the 200 cm(-1) to 2000 cm(-1) range (5-50 micrometers).
Employed advanced digital processing and a cesium iodide beam splitter, addressing external vibration challenges.

Main Results:

Achieved a spectral resolution of 2.4 cm(-1) in apodized mode.
Deduced a noise equivalent radiance of 0.5 x 10(-7) W cm(-2) sr(-1)/cm(-1).
Presented calibration data and sample spectra validating instrument performance.

Conclusions:

The Mariner 9 Michelson interferometer successfully obtained high-resolution thermal emission spectra of Mars.
The instrument's design innovations and robust performance enable detailed atmospheric and surface analysis.
The collected data contributes significantly to the understanding of Martian thermal environments.