Abstract
In an attempt to apply the fuzzy set theory to optics a fuzzy entropy [A. De Luca and S. Termini: Inf. Control20 (1972) 301] is used as a measure of optical field concentration in transverse dimensions. Unlike the Shannon's information entropy, the fuzzy entropy is based on a nonprobabilistic concept and therefore can be used for characterizing the strength of classical wave localization.
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Hayata, K. Application of fuzzy set theory to wave optics. Optical Review 3, 147–149 (1996). https://doi.org/10.1007/BF02931711
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DOI: https://doi.org/10.1007/BF02931711