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Proceedings Paper

Comparison of visible and infrared backscattering Mueller matrices from roughened aluminum surfaces
Author(s): Gareth D. Lewis; David L. Jordan; Scott D. Niven
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Paper Abstract

A comparison is made between the backscattering Mueller matrices of two bead-blasted aluminium samples at both 632.8nm HeNe and 10.6micrometers CO2 lasers wavelengths. The samples are bead-blasted at two blasting pressures to vary the rms surface roughness and slope. These surfaces are characterized using a mechanical profilometer. Mueller matrices are determined with the detector fixed close to direct backscatter and the target angle varied between 0 degrees and 80 degrees. Results are presented of the angular variation of the major diagonal elements and off-diagonal elements m12 and m21 with increasing roughness to wavelength ratio. The copolarized scattering intensities and copolarized ratios derived from the Mueller matrices show similarities to microwave radar sea echo.

Paper Details

Date Published: 25 October 1999
PDF: 11 pages
Proc. SPIE 3754, Polarization: Measurement, Analysis, and Remote Sensing II, (25 October 1999); doi: 10.1117/12.366336
Show Author Affiliations
Gareth D. Lewis, Defence Evaluation and Research Agency Malvern (Italy)
David L. Jordan, Defence Evaluation and Research Agency Malvern (United Kingdom)
Scott D. Niven, Defence Evaluation and Research Agency Malvern (United Kingdom)


Published in SPIE Proceedings Vol. 3754:
Polarization: Measurement, Analysis, and Remote Sensing II
Dennis H. Goldstein; David B. Chenault, Editor(s)

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