5. Super-Resolution Imaging with Hyperlens

《5. Super-Resolution Imaging with Hyperlens》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、FilippoCapolino/ApplicationsofMetamaterials_CFinalsPage--#5Super-ResolutionImagingwithHyperlensHyesogLeeUniversityofCalifornia,BerkeleyYiXiongUniversityofCalifornia,Berkeley.Introduction.........................................-ZhaoweiLiu.HyperlensTheory......................

2、..............-UniversityofCalifornia,Berkeley.HyperlensDesign....................................-.HyperlensFabrication................................-ChengSun.ImagingExperimentSetup...........................-UniversityofCalifornia,Berkeley.ImagingResults.........................

3、.............-XiangZhang.Conclusions..........................................-UniversityofCalifornia,BerkeleyReferences.................................................-5.1IntroductionThesmallestresolvablefeature(Δ)ofanyopticalsystemcanbeapproximatedbythediffractionlimit[]:λΔ=(.)NAwh

4、ereλisthewavelengthofthelightinfreespaceNA=nsinθisthenumericalaperture,wherenistherefractiveindexofthemediumandθisthelightcollectionangleoftheopticsInmanydisciplinesofresearch,itisdesirabletousevisiblewavelength(shortestlimitof∼nm)andthevalueofsinθhasupperlimitofevenattheidealcase.Thatleavesusw

5、ithn.Thesignificanceoftheindexofrefractionliesinhowlargeawavevectorthemediumcansupportforthepropagationofawave.Oneofthemainchallengesincurrentopticalmicroscopyisthatthemaximumresolutionislimitedbytheminimumrefractiveindexalongtheopticalpath,whichisnomorethan.∼.evenwithcurrentimmersionmicroscopy

6、thatutilizesnaturallyavailablematerialssuchasglassoroil.Theinnovationofmetamaterialsopenedwidethedoorforfurtherdevelopmentoffascinatingscienceandengineeringinthefieldofelectromagnetics.Thebeautyofthemetamaterialconceptisthesimpleepiphanythatwedonothavetorearrangeatoms—orsubatomicparticlestherein—in

7、order5-1©2009byTaylorandFrancisGroup,LLCFilippoCapolino/ApplicationsofMetamaterials_CFinalsPage--#5-2ApplicationsofMetamaterialstoengineeranewmatter;instead,wefabricateartificialstructurewi