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  英语翻译提前说明不要翻译软件的和google在线翻译的Coherencecodingalsofacilitatestime-multiplexingsuperresolutioninbothspatialandtemporalways.Inspatialcoherencecoding,themutualintensityfunctionoftheillumination

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  Coherencecodingalsofacilitatestime-multiplexingsuperresolutioninbothspatialandtemporalways.Inspatialcoherencecoding,themutualintensityfunctionoftheilluminationbeamisusedtocodespatialinformationinananalogouswaytotimemultiplexing.Theinformationismultiplexedintimeslotsseparatedbyanintervalofatleastthecoherencetimeoftheilluminationbeam.3Insteadofgeneratingdiversedistributions,eachonewithdifferenttransversecoherencefunctions,thelongitudinalaxisisusedtocodethetransversespatialinformationinthetemporalcoherencecodingbyusingincoherentlightinterferometry.4Afterthat,interferometricimage-planerecordingandadigitalpost-processingstageallowtheneededdecodingtoachievethesuperresolutioneffect.

  Ananalogyoftiltedbeamshelpsexplaincoherencecoding.Thekeyideaistheequivalencebetweenadiffractiongratingandasetoftiltedbeams(on-axisandoff-axisbeams)withthesamepropagationanglesasthosediffractedbythegrating.Thus,theoff-axisilluminationisusedtodownshiftthehigh-frequencycomponentsoftheobject’sspectrumtolow-frequencyones,allowingitspassagethroughthesystemaperture.Inthatsense,theencodingstageisdefinedasasetofilluminationbeamshavingdifferentincidenceangles(on-axisandoff-axis).Whenthesetiltedbeamsimpingeupontheinputobject,eachofthemproducesafrequencyshiftintheobject’sspectrumaccordingtothebeampropagationangle.Onceagain,adecodingstageandinmostcasesadigitalpost-processingstagerestoreeachdiffractedbandaccordingtoitsoriginaldiffractionangle(seeFig.2).

  Overthelastfewyears,timemultiplexinghasbeencombinedwithdigitalholographytorecoverthecomplexamplitudedistributionofthesampleundertest.Inparticular,oneinterestingapplicationforthisinterferometricimagingismicroscopy,inwhichsynthetic-aperturegenerationpermitstheextractionofmedium-andhigh-resolutionimagesusinglow-NAmicroscopelenses.5,6Muchlikethegratingandspeckle-patternprocesses,thistechniquealsodirectsoff-axisilluminationontotheobjectandenablesthetransmissionofhigh-frequencybandsthroughalimite

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2020-05-31 11:50
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付长龙

  参考答案:x09学而不思则罔,思而不学则殆.——《论语》

2020-05-31 11:52:43

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