Trapping and rotating of a metallic particle trimer with optical vortex
We have experimentally observed the steady rotation of a mesoscopic size metallic particle trimer that is optically trapped by tightly focused circularly polarized optical vortex. Our theoretical analysis suggests that a large proportion of the radial scattering force pushes the metallic particles t...
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| Veröffentlicht in: | Applied physics letters 2016-12, Vol.109 (24) |
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| container_title | Applied physics letters |
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| creator | Shen, Z. Su, L. Yuan, X.-C. Shen, Y.-C. |
| description | We have experimentally observed the steady rotation of a mesoscopic size metallic particle trimer that is optically trapped by tightly focused circularly polarized optical vortex. Our theoretical analysis suggests that a large proportion of the radial scattering force pushes the metallic particles together, whilst the remaining portion provides the centripetal force necessary for the rotation. Furthermore, we have achieved the optical trapping and rotation of four dielectric particles with optical vortex. We found that, different from the metallic particles, instead of being pushed together by the radial scattering force, the dielectric particles are trapped just outside the maximum intensity ring of the focused field. The radial gradient force attracting the dielectric particles towards the maximum intensity ring provides the centripetal force for the rotation. The achieved steady rotation of the metallic particle trimer reported here may open up applications such as the micro-rotor. |
| doi_str_mv | 10.1063/1.4971981 |
| format | Article |
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Our theoretical analysis suggests that a large proportion of the radial scattering force pushes the metallic particles together, whilst the remaining portion provides the centripetal force necessary for the rotation. Furthermore, we have achieved the optical trapping and rotation of four dielectric particles with optical vortex. We found that, different from the metallic particles, instead of being pushed together by the radial scattering force, the dielectric particles are trapped just outside the maximum intensity ring of the focused field. The radial gradient force attracting the dielectric particles towards the maximum intensity ring provides the centripetal force for the rotation. The achieved steady rotation of the metallic particle trimer reported here may open up applications such as the micro-rotor.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4971981</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Centripetal force ; Circular polarization ; Dielectrics ; Metal particles ; Optical trapping ; Rotation ; Scattering ; Trimers ; Vortices</subject><ispartof>Applied physics letters, 2016-12, Vol.109 (24)</ispartof><rights>Author(s)</rights><rights>2016 Author(s). 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Our theoretical analysis suggests that a large proportion of the radial scattering force pushes the metallic particles together, whilst the remaining portion provides the centripetal force necessary for the rotation. Furthermore, we have achieved the optical trapping and rotation of four dielectric particles with optical vortex. We found that, different from the metallic particles, instead of being pushed together by the radial scattering force, the dielectric particles are trapped just outside the maximum intensity ring of the focused field. The radial gradient force attracting the dielectric particles towards the maximum intensity ring provides the centripetal force for the rotation. The achieved steady rotation of the metallic particle trimer reported here may open up applications such as the micro-rotor.</description><subject>Applied physics</subject><subject>Centripetal force</subject><subject>Circular polarization</subject><subject>Dielectrics</subject><subject>Metal particles</subject><subject>Optical trapping</subject><subject>Rotation</subject><subject>Scattering</subject><subject>Trimers</subject><subject>Vortices</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqdkE9LAzEQxYMoWKsHv0HAk8LWTLK7SY5StAoFL_UcstmsbtluYpL659s3pQXvnmbe8GPmzUPoGsgMSM3uYVZKDlLACZoA4bxgAOIUTQghrKhlBefoIsZ1lhVlbIIWq6C978d3rMcWB5d02gvXYY03Nulh6A32OqTeDBan0G9swN99-sDO55ke8JcLyf5corNOD9FeHesUvT09rubPxfJ18TJ_WBaG1TQV0tSGGk2axkpLZEPbVmrKS9mI2jBSCS6Ac2YII6TkTDOaO0kklKCFsJJN0c1hrw_uc2tjUmu3DWM-qShQqKigwDN1e6BMcDEG2ymfnevwq4CofU4K1DGnzN4d2Gj6_fdu_B-cc_gDlW87tgOwwXSn</recordid><startdate>20161212</startdate><enddate>20161212</enddate><creator>Shen, Z.</creator><creator>Su, L.</creator><creator>Yuan, X.-C.</creator><creator>Shen, Y.-C.</creator><general>American Institute of Physics</general><scope>AJDQP</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-3370-8913</orcidid><orcidid>https://orcid.org/0000-0002-8915-1993</orcidid></search><sort><creationdate>20161212</creationdate><title>Trapping and rotating of a metallic particle trimer with optical vortex</title><author>Shen, Z. ; Su, L. ; Yuan, X.-C. ; Shen, Y.-C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-9c6c2ca0bbe9e09b2dd9a2749b86c3058781773c0300473a32030909141a88e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Applied physics</topic><topic>Centripetal force</topic><topic>Circular polarization</topic><topic>Dielectrics</topic><topic>Metal particles</topic><topic>Optical trapping</topic><topic>Rotation</topic><topic>Scattering</topic><topic>Trimers</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shen, Z.</creatorcontrib><creatorcontrib>Su, L.</creatorcontrib><creatorcontrib>Yuan, X.-C.</creatorcontrib><creatorcontrib>Shen, Y.-C.</creatorcontrib><collection>AIP Open Access Journals</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shen, Z.</au><au>Su, L.</au><au>Yuan, X.-C.</au><au>Shen, Y.-C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trapping and rotating of a metallic particle trimer with optical vortex</atitle><jtitle>Applied physics letters</jtitle><date>2016-12-12</date><risdate>2016</risdate><volume>109</volume><issue>24</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>We have experimentally observed the steady rotation of a mesoscopic size metallic particle trimer that is optically trapped by tightly focused circularly polarized optical vortex. Our theoretical analysis suggests that a large proportion of the radial scattering force pushes the metallic particles together, whilst the remaining portion provides the centripetal force necessary for the rotation. Furthermore, we have achieved the optical trapping and rotation of four dielectric particles with optical vortex. We found that, different from the metallic particles, instead of being pushed together by the radial scattering force, the dielectric particles are trapped just outside the maximum intensity ring of the focused field. The radial gradient force attracting the dielectric particles towards the maximum intensity ring provides the centripetal force for the rotation. The achieved steady rotation of the metallic particle trimer reported here may open up applications such as the micro-rotor.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4971981</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0003-3370-8913</orcidid><orcidid>https://orcid.org/0000-0002-8915-1993</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Applied physics letters, 2016-12, Vol.109 (24) |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_4971981 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Centripetal force Circular polarization Dielectrics Metal particles Optical trapping Rotation Scattering Trimers Vortices |
| title | Trapping and rotating of a metallic particle trimer with optical vortex |
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