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http://hdl.handle.net/10261/114400
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dc.contributor.author | Nedev, Spas | - |
dc.contributor.author | Carretero-Palacios, Sol | - |
dc.contributor.author | Kühler, Paul | - |
dc.contributor.author | Lohmüller, Theobald | - |
dc.contributor.author | Urban, Alexander S. | - |
dc.contributor.author | Anderson, Lindsey J. E. | - |
dc.contributor.author | Feldmann, Jochen | - |
dc.date.accessioned | 2015-04-29T07:32:46Z | - |
dc.date.available | 2015-04-29T07:32:46Z | - |
dc.date.issued | 2015 | - |
dc.identifier | doi: 10.1021/ph500371z | - |
dc.identifier | issn: 2330-4022 | - |
dc.identifier.citation | ACS Photonics 2: 491- 496 (2015) | - |
dc.identifier.uri | http://hdl.handle.net/10261/114400 | - |
dc.description.abstract | © 2015 American Chemical Society. In this article, we report how Janus particles, composed of a silica sphere with a gold half-shell, can be not only stably trapped by optical tweezers but also displaced controllably along the axis of the laser beam through a complex interplay between optical and thermal forces. Scattering forces orient the asymmetric particle, while strong absorption on the metal side induces a thermal gradient, resulting in particle motion. An increase in the laser power leads to an upward motion of the particle, while a decrease leads to a downward motion. We study this reversible axial displacement, including a hysteretic jump in the particle position that is a result of the complex pattern of a tightly focused laser beam structure above the focal plane. As a first application we simultaneously trap a spherical gold nanoparticle and show that we can control the distance between the two particles inside the trap. This photonic micron-scale >elevator> is a promising tool for thermal force studies, remote sensing, and optical and thermal micromanipulation experiments. | - |
dc.publisher | American Chemical Society | - |
dc.rights | closedAccess | - |
dc.subject | Janus particles | - |
dc.subject | Thermophoresis | - |
dc.subject | Microswimmer | - |
dc.subject | Optical trapping | - |
dc.title | An optically controlled microscale elevator using plasmonic janus particles | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1021/ph500371z | - |
dc.date.updated | 2015-04-29T07:32:46Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.identifier.pmid | 25950013 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
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