Fractional Fourier transform for annular flat-topped beams-中国Betway体育网页登陆

摘要 ThefractionalFouriertransform(FRFT)isappliedtotreatthepropagationofannularflat-toppedbeams.BasedonthedefinitionofFRFTinthecylindricalcoordinatesystem,analyticalformulaearederivedforannularflat-toppedbeamsthroughtheFRFTopticalsystems.Byusingtheformulae,thepropertiesofannularflat-toppedbeamsintheFRFTplaneareillustratednumerically.TheresultsshowthattheintensitydistributionpropertiesintheFRFTplanearecloselyrelatedtothefractionalorderoftheFRFTopticalsystemandinitialbeamparameters.

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Fractional Fourier transform for annular flat-topped beams

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