Visualizing orbital angular momentum of plasmonic vortices
Plasmonic vortices (PVs) are generated by focusing a radially polarized optical vortex (OV) beam onto a metal surface. The intensity distribution of the PV is registered with a near-field scanning optical microscopy and agrees well with a theoretical prediction as well as numerical calculation. Besi...
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| Veröffentlicht in: | Optics letters 2012-11, Vol.37 (22), p.4627-4629 |
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| container_title | Optics letters |
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| creator | Shen, Z Hu, Z J Yuan, G H Min, C J Fang, H Yuan, X-C |
| description | Plasmonic vortices (PVs) are generated by focusing a radially polarized optical vortex (OV) beam onto a metal surface. The intensity distribution of the PV is registered with a near-field scanning optical microscopy and agrees well with a theoretical prediction as well as numerical calculation. Beside the dark central spot, the numerical calculation also shows an azimuthal Poynting vector belonging to the PV, implying that the orbital angular momentum (OAM) was transferred from the radially polarized OV. To directly verify the OAM, plasmonic trapping experiments with gold micrometer particles are performed and the particle rotation is visualized. Further experiments by varying the topological charge of radially polarized OVs show the corresponding changes in rotation in terms of speed and radius. |
| doi_str_mv | 10.1364/OL.37.004627 |
| format | Article |
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The intensity distribution of the PV is registered with a near-field scanning optical microscopy and agrees well with a theoretical prediction as well as numerical calculation. Beside the dark central spot, the numerical calculation also shows an azimuthal Poynting vector belonging to the PV, implying that the orbital angular momentum (OAM) was transferred from the radially polarized OV. To directly verify the OAM, plasmonic trapping experiments with gold micrometer particles are performed and the particle rotation is visualized. Further experiments by varying the topological charge of radially polarized OVs show the corresponding changes in rotation in terms of speed and radius.</description><identifier>ISSN: 0146-9592</identifier><identifier>EISSN: 1539-4794</identifier><identifier>DOI: 10.1364/OL.37.004627</identifier><identifier>PMID: 23164860</identifier><language>eng</language><publisher>United States</publisher><subject>Angular momentum ; Beams (radiation) ; Fluid flow ; Focusing ; Mathematical analysis ; Orbitals ; Plasmonics ; Vortices</subject><ispartof>Optics letters, 2012-11, Vol.37 (22), p.4627-4629</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-facb3688750cac9ea4ba0bb6d50de78fffb3615a959ae3f942a6faa98902c7d43</citedby><cites>FETCH-LOGICAL-c362t-facb3688750cac9ea4ba0bb6d50de78fffb3615a959ae3f942a6faa98902c7d43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,3258,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23164860$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shen, Z</creatorcontrib><creatorcontrib>Hu, Z J</creatorcontrib><creatorcontrib>Yuan, G H</creatorcontrib><creatorcontrib>Min, C J</creatorcontrib><creatorcontrib>Fang, H</creatorcontrib><creatorcontrib>Yuan, X-C</creatorcontrib><title>Visualizing orbital angular momentum of plasmonic vortices</title><title>Optics letters</title><addtitle>Opt Lett</addtitle><description>Plasmonic vortices (PVs) are generated by focusing a radially polarized optical vortex (OV) beam onto a metal surface. The intensity distribution of the PV is registered with a near-field scanning optical microscopy and agrees well with a theoretical prediction as well as numerical calculation. Beside the dark central spot, the numerical calculation also shows an azimuthal Poynting vector belonging to the PV, implying that the orbital angular momentum (OAM) was transferred from the radially polarized OV. To directly verify the OAM, plasmonic trapping experiments with gold micrometer particles are performed and the particle rotation is visualized. Further experiments by varying the topological charge of radially polarized OVs show the corresponding changes in rotation in terms of speed and radius.</description><subject>Angular momentum</subject><subject>Beams (radiation)</subject><subject>Fluid flow</subject><subject>Focusing</subject><subject>Mathematical analysis</subject><subject>Orbitals</subject><subject>Plasmonics</subject><subject>Vortices</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAUhS0EoqWwMaOMDKT4FTtmQxUvKVIXYLVuHLsySuJiJ0jw60lVYEV3OMP9dHT0IXRO8JIwwa_X1ZLJJcZcUHmA5qRgKudS8UM0x4SLXBWKztBJSm8YYyEZO0YzyojgpcBzdPPq0wit__L9Jgux9gO0GfSbsYWYdaGz_TB2WXDZtoXUhd6b7CPEwRubTtGRgzbZs59coJf7u-fVY16tH55Wt1VumKBD7sDUTJSlLLABoyzwGnBdi6bAjZWlc256kwKmnWCZU5yCcACqVJga2XC2QJf73m0M76NNg-58MrZtobdhTJowujuK6f8omcQoimU5oVd71MSQUrROb6PvIH5qgvVOrF5Xmkm9FzvhFz_NY93Z5g_-Ncm-ASRSc3A</recordid><startdate>20121115</startdate><enddate>20121115</enddate><creator>Shen, Z</creator><creator>Hu, Z J</creator><creator>Yuan, G H</creator><creator>Min, C J</creator><creator>Fang, H</creator><creator>Yuan, X-C</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20121115</creationdate><title>Visualizing orbital angular momentum of plasmonic vortices</title><author>Shen, Z ; Hu, Z J ; Yuan, G H ; Min, C J ; Fang, H ; Yuan, X-C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-facb3688750cac9ea4ba0bb6d50de78fffb3615a959ae3f942a6faa98902c7d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Angular momentum</topic><topic>Beams (radiation)</topic><topic>Fluid flow</topic><topic>Focusing</topic><topic>Mathematical analysis</topic><topic>Orbitals</topic><topic>Plasmonics</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shen, Z</creatorcontrib><creatorcontrib>Hu, Z J</creatorcontrib><creatorcontrib>Yuan, G H</creatorcontrib><creatorcontrib>Min, C J</creatorcontrib><creatorcontrib>Fang, H</creatorcontrib><creatorcontrib>Yuan, X-C</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shen, Z</au><au>Hu, Z J</au><au>Yuan, G H</au><au>Min, C J</au><au>Fang, H</au><au>Yuan, X-C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Visualizing orbital angular momentum of plasmonic vortices</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2012-11-15</date><risdate>2012</risdate><volume>37</volume><issue>22</issue><spage>4627</spage><epage>4629</epage><pages>4627-4629</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><abstract>Plasmonic vortices (PVs) are generated by focusing a radially polarized optical vortex (OV) beam onto a metal surface. 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| source | Optica Publishing Group Journals |
| subjects | Angular momentum Beams (radiation) Fluid flow Focusing Mathematical analysis Orbitals Plasmonics Vortices |
| title | Visualizing orbital angular momentum of plasmonic vortices |
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