Abstract
Naturally occurring solid surfaces display structure over wide ranges of spatial wavelength, and this has important influences upon their radiation scattering characteristics. Fluctuations in scattered intensity are less severe than for smoothly-profiled surfaces, but the fine structure of the surface enhances scattering through large angles. Laboratory measurements of scattering of 10.6 micron CO2 laser radiation by roughened surfaces are used to illustrate these effects and show the extent to which they may be modelled using physical optics.
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Jordan, D.L., Hollins, R.C. & Jakeman, E. Speckle phenomena at 10 micron wavelength. Int J Infrared Milli Waves 5, 1597–1604 (1984). https://doi.org/10.1007/BF01040509
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DOI: https://doi.org/10.1007/BF01040509