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2 August 2021 Mueller matrix BRDF measurements using random sampling and fiber-coupled detectors
Clifton G. Scarboro, Michael W. Kudenov
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Proceedings Volume 11833, Polarization Science and Remote Sensing X; 118330Q (2021) https://doi.org/10.1117/12.2593990
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States
Abstract
The bidirectional reflectance distribution function (BRDF) of surfaces has deleterious effects on optical measurements. Collecting Mueller matrix BRDF (mmBRDF) measurements of a surface by conventional goniometric techniques can be time-consuming. We present a system for collecting mmBRDF measurements using optical fiber detectors that sample the hemisphere surrounding an object. The entrance to each fiber contains a polarization state analyzer (PSA) configuration which allows for the simultaneous acquisition of the Stokes vector at many altitudinal and azimuthal viewing positions. We describe the setup, calibration, and data processing for this system and present its performance as applied to mmBRDF measurements of maize leaves.
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Clifton G. Scarboro and Michael W. Kudenov "Mueller matrix BRDF measurements using random sampling and fiber-coupled detectors", Proc. SPIE 11833, Polarization Science and Remote Sensing X, 118330Q (2 August 2021); https://doi.org/10.1117/12.2593990
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KEYWORDS
Bidirectional reflectance transmission function
Sensors
Light emitting diodes
Polarization
Optical testing
Optical fibers
Optical filters
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