■工学部_研究紹介_2017_英語版ファイル161220

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0.2mmFujiiLabOptical Cloak of Invisibility &Topology OptimizationIn the FutureAfter GraduationMechanical Systems EngineeringWenowtrytofabricateopticalcloaksbyusing3Dprinterstorealizehigh-performanceopticalcloaks.STLdataarecreatedbyFEMdataofoptimalconfigurationsandexperimentsforcloakingperformancewillbecarriedout.Wealsotrytoimprovecloakingperformanceforfrequencies.Designingmulti-frequencyandwide-bandcloaksisoneofthemostimportantandinterestingfutureworks.GarudaFujii,Assis.Prof.,Dr.Eng.NagoyaUniv.in2012,AssistantProfessorinAkitaPrefecturalUniversity,April2012–September2013,AssistantProfessorinShinshuUniversity,October2013-now.Computing machineries, displays,and UPSs for numerical computations. Designed optimal cloaking structures and their cloaking performances. Graduatesofourlaboratoryworkinvariousengineeringcompaniesforcars,cameras,etc.PECPECPECPECPECPEC2RPEC=5λ/32RPEC=3λ2RPEC=5λ=110−6=110−8=110−12F=2.0510−4F=8.0010−5F=1.7410−2Opticalcloakingdevicescanrenderobjectsinvisiblebycontrollingtheflowoflightaroundtheobjectswithoutanyscattering.Cloakingdevicescomposedofdielectricmaterialsaredesignedbyusingtopologyoptimizationmethod.Topologyoptimizationmethodsenableustomaximizedevicesperformancesbydesigningdevicesstructures.Intheoptimizationsofcloakingdevices,theamountoflightscatteringisminimizedandbecomesalmostzero.60

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