Engineering-Research-Activity2016｜SHINSHU UNIV.

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FujiiLabOpticalcloakingdevicescanrenderobjectsinvisiblebycontrollingtheflowoflightaroundtheobjectswithoutanyscattering.Cloakingdevicescomposedofdielectricmaterialsaredesignedbyusingtopologyoptimizationmethod.Topologyoptimizationmethodsenableustomaximizedevicesperformancesbydesigningdevicesstructures.Intheoptimizationsofcloakingdevices,theamountoflightscatteringisminimizedandbecomesalmostzero.Wenowtrytofabricateopticalcloaksbyusing3Dprinterstorealizehigh-performanceopticalcloaks.STLdataarecreatedbyFEMdataofoptimalconfigurationsandexperimentsforcloakingperformancewillbecarriedout.Wealsotrytoimprovecloakingperformanceforfrequencies.Designingwide-bandcloaksisoneofthemostimportantandinterestingfutureworks.Garuda FujiiAssistant ProfessorDr. Eng. Nagoya Univ. in 2012, Assistant Professor in Akita Prefectural University, April 2012 –September 2013, Assistant Professor in ShinshuUniversity, October 2013 -now.Computing machineries, displays, and UPSs for numerical computations. Optical Cloak of Invisibility &Topology OptimizationDesigned optimal cloaking structures and their cloaking performances. Graduatesofourlaboratoryworkinvariousengineeringcompanies.In the FutureAfter GraduationEnvironmental Science &TechnologyWagataLabInWagataLab,wecollaboratewithTeshimaLabtocreatenext-generationenergyandenvironmentalmaterials.Inparticular,wefocusonanaqueoussolutionmethodforfabricationofinorganicmaterials.Theaqueoussolutionmethodisverysimpleandcanproduceinorganicmaterialsbelow100ºC.Chemicalreactionsseeninthemethodissimilartothoseoflivingorganismsonearth.Wearetryingtocreateinorganicmaterialswithspecialstructuresand/ornovelfunctionalitiesbystudyingtheprocessofmaterialcreationinnature.Anaqueoussolutionmethoddoesn’trequirehightemperature,highpressure,noravacuum.Thus,materialspreparedbythemethodusuallycontainvariousimpurities,butitsadvantageisthatvariouscompositematerialscanbeeasilyprepared.Wearetryingtoconstructanenvironmentally-friendlyaqueoussolutionmethodforfabricationoffunctionalinorganicmaterials.HajimeWagataAssistant ProfessorHe completed doctoral degree in Tokyo Institute of Technology in 2011. He has been assigned at present post from 2012. Coating equipment using aqueous chemistry (left), zinc oxide films prepared with the equipment (right). The microstructure of the films can be tuned easily. Challenge to Construct an Environmentally-Friendly MethodPhotographs of our laboratory. Students are discussing and advising each other independent on their research theme.InourLab,studentsstudyleading-edgematerialsscienceandengineeringandlearnaboutenvironmentally-friendlyprocesses.Wehopeourgraduateswillbetheexpertsinvariousfieldsmakingthemostoutoftheirexperiencesinourlab.Environmental Science &TechnologyIn the FutureAfter Graduation66

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