{"255431":{"#nid":"255431","#data":{"type":"news","title":"Probing terahertz surface plasmon waves in graphene structures","body":[{"value":"\u003Cp\u003EAuthors:\u0026nbsp; \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Mitrofanov_O\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EOleg Mitrofanov\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Yu_W\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EWenlong Yu\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Thompson_R\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003ERobert J. Thompson\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Jiang_Y\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EYuxuan Jiang\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Brener_I\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EIgal Brener\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Pan_W\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EWei Pan\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Berger_C\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EClaire Berger\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Heer_W\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EWalter A. de Heer\u003C\/a\u003E, \u003Ca href=\u0022http:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Jiang_Z\/0\/1\/0\/all\/0\/1\u0022 rel=\u0022nofollow\u0022\u003EZhigang Jiang\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EEpitaxial graphene mesas and ribbons are investigated using terahertz (THz) nearfield microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale. The THz near-field images show variation of graphene properties on a scale smaller than the wavelength, and excitation of THz surface waves occurring at graphene edges, similar to that observed at metallic edges. The Fresnel reflection at the substrate SiC\/air interface is also found to be altered by the presence of graphene ribbon arrays, leading to either reduced or enhanced transmission of the THz wave depending on the wave polarization and the ribbon width.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EEpitaxial graphene mesas and ribbons are investigated using terahertz (THz) nearfield microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale. The THz near-field images show variation of graphene properties on a scale smaller than the wavelength, and excitation of THz surface waves occurring at graphene edges, similar to that observed at metallic edges.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Epitaxial graphene mesas and ribbons are investigated using terahertz (THz) nearfield microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale."}],"uid":"27428","created_gmt":"2013-11-15 16:18:29","changed_gmt":"2016-10-08 03:15:22","author":"Gina Adams","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2013-07-29T00:00:00-04:00","iso_date":"2013-07-29T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"hg_media":{"257341":{"id":"257341","type":"image","title":"Probing terahertz surface plasmon waves in graphene structures","body":null,"created":"1449243856","gmt_created":"2015-12-04 15:44:16","changed":"1475894938","gmt_changed":"2016-10-08 02:48:58","alt":"Probing terahertz surface plasmon waves in graphene structures","file":{"fid":"198251","name":"article4.jpg","image_path":"\/sites\/default\/files\/images\/article4_0.jpg","image_full_path":"http:\/\/tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/article4_0.jpg","mime":"image\/jpeg","size":57480,"path_740":"http:\/\/tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/article4_0.jpg?itok=XPrVhQrc"}}},"media_ids":["257341"],"related_links":[{"url":"http:\/\/arxiv.org\/abs\/1307.7374","title":"http:\/\/arxiv.org\/abs\/1307.7374"}],"groups":[{"id":"60783","name":"MRSEC"}],"categories":[{"id":"42941","name":"Art Research"}],"keywords":[{"id":"9116","name":"epitaxial graphene"}],"core_research_areas":[{"id":"39451","name":"Electronics and Nanotechnology"},{"id":"39471","name":"Materials"}],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}