An Automated Setup for Measuring the Light-Scattering Characteristics of Samples with Rough Surfaces at Laser Wavelengths in the Range of 0.35–1.1 μm

The description and the operating algorithm of an automated scanning device, which is constructed according to the scheme of a two-coordinate goniophotometer and is intended for measuring the bidirectional reflection function (BDRF) of samples with different degrees of surface roughness at laser wav...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2019-09, Vol.62 (5), p.669-674
Main Authors: Burenkov, A. A., Klimov, A. A., Kunin, A. V., Mal’tsev, V. I., Chivkunov, M. A.
Format: Article
Language:English
Subjects:
Algorithms
Automation
Electrical Engineering
Error analysis
General Experimental Techniques
Light scattering
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
Radiation sources
Scanning
Surface roughness
Wavelengths
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Summary:The description and the operating algorithm of an automated scanning device, which is constructed according to the scheme of a two-coordinate goniophotometer and is intended for measuring the bidirectional reflection function (BDRF) of samples with different degrees of surface roughness at laser wavelengths of 0.53, 0.63, and 1.06 µm, are described. The relative measurement error of the BDRF is 6–9%. Special software and the design features allow one to vary the time and scanning step of the device, while the presence of two measurement channels makes it possible to use radiation sources with a nonstabilized output power. The device has the ability to displace the operating spectral range to the region of the middle and far IR range.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441219040146