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      Optimally Toothed Apertures for Reduced Diffraction

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          Abstract

          We model diffraction errors found when using toothed apertures [L. P. Boivin, Reduction of diffraction errors in radiometry by means of toothed apertures, Appl. Opt. 17, 3323–3328 (1978)]. Using toothed (cf. circular) apertures minimizes diffraction by inducing destructive interference within the diffracted signal. Since diffraction effects can be quite complicated, their over-all reduction may help limit uncertainties in, say calibrations. Our analysis yields three principles to guide design of nonlimiting (baffle) apertures which minimize diffrac tion. We performed detailed diffraction calculations within scalar (Kirchoff) diffraction theory, using parallel-computing resources at the National Institute of Standards and Technology.

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          Classical electrodynamics

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            Die Beugungswelle in der Kirchhoffschen Theorie der Beugungserscheinungen

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              Diffraction Losses in Radiometry and Photometry

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                Author and article information

                Journal
                J Res Natl Inst Stand Technol
                J Res Natl Inst Stand Technol
                JRES
                Journal of Research of the National Institute of Standards and Technology
                [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
                1044-677X
                2165-7254
                Nov-Dec 1996
                01 December 1996
                : 101
                : 6
                : 745-753
                Affiliations
                National Institute of Standards and Technology, Gaithersburg, MD 20899-0001
                Article
                j6shir
                10.6028/jres.101.072
                4900809
                34e6eeeb-36f4-4bc8-a544-0f16170a5c36
                Copyright @ 1996

                The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.

                History
                : 19 July 1996
                Funding
                Funded by: National Institute of Standards and Technology
                Award ID: 9999-NIST
                Categories
                Article

                aperture,computation,diffraction,parallel processing,tooth
                aperture, computation, diffraction, parallel processing, tooth

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