{"title":"Nanoscale Observation of Real-Space Mid-Infrared Field Distribution in a Stamp-Type Plasmonic Structure","authors":"R. Yuasa, T. Okamoto, A. Sasagawa, Y. Kawano","doi":"10.1109/IRMMW-THZ.2018.8510468","DOIUrl":null,"url":null,"abstract":"By utilizing a scattering-type scanning near-field optical microscopy (s-SNOM) in mid-infrared (MIR) band, we observed nanoscale real-space optical field distribution in a Bull's eye (BE) plasmonic structure, which was fabricated through a template-assisted stamp method. Nanoscale near-field images were shown to agree with plasmonic features of electromagnetic simulation results, showing that the fabricated the BE structure works as a plasmonic device. The s-SNOM thus offers a strong tool for gaining nanoscale real-space optical field distribution in plasmonic micro/nanostructures.","PeriodicalId":6653,"journal":{"name":"2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","volume":"305 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IRMMW-THZ.2018.8510468","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
By utilizing a scattering-type scanning near-field optical microscopy (s-SNOM) in mid-infrared (MIR) band, we observed nanoscale real-space optical field distribution in a Bull's eye (BE) plasmonic structure, which was fabricated through a template-assisted stamp method. Nanoscale near-field images were shown to agree with plasmonic features of electromagnetic simulation results, showing that the fabricated the BE structure works as a plasmonic device. The s-SNOM thus offers a strong tool for gaining nanoscale real-space optical field distribution in plasmonic micro/nanostructures.
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