Plasmonic tweezers: for nanoscale optical trapping and beyond
| Autor: | Xianyou Wang, Xiaocong Yuan, Xiujie Dou, H. P. Urbach, Michael G. Somekh, Changjun Min, Yuquan Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
lcsh:Applied optics. Photonics
Computer science Physics::Optics Context (language use) Nanotechnology Near and far field 02 engineering and technology Review Article 010402 general chemistry 01 natural sciences Tweezers lcsh:QC350-467 Small particles Nanoscopic scale Plasmon Nanophotonics and plasmonics Surface plasmon lcsh:TA1501-1820 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Optical tweezers Optical manipulation and tweezers 0210 nano-technology lcsh:Optics. Light |
| Zdroj: | Light: Science & Applications, Vol 10, Iss 1, Pp 1-41 (2021) Light, Science & Applications |
| ISSN: | 2047-7538 |
| Popis: | Optical tweezers and associated manipulation tools in the far field have had a major impact on scientific and engineering research by offering precise manipulation of small objects. More recently, the possibility of performing manipulation with surface plasmons has opened opportunities not feasible with conventional far-field optical methods. The use of surface plasmon techniques enables excitation of hotspots much smaller than the free-space wavelength; with this confinement, the plasmonic field facilitates trapping of various nanostructures and materials with higher precision. The successful manipulation of small particles has fostered numerous and expanding applications. In this paper, we review the principles of and developments in plasmonic tweezers techniques, including both nanostructure-assisted platforms and structureless systems. Construction methods and evaluation criteria of the techniques are presented, aiming to provide a guide for the design and optimization of the systems. The most common novel applications of plasmonic tweezers, namely, sorting and transport, sensing and imaging, and especially those in a biological context, are critically discussed. Finally, we consider the future of the development and new potential applications of this technique and discuss prospects for its impact on science. Optical manipulation: plasmonic tweezers Plasmonic tweezers exploit sub-wavelength confinement of light to allow trapping and manipulation of small particles with far greater precision than usual. Yuquan Zhang and coworkers from Shenzhen University in China and Delft University of Technology in The Netherlands have now reviewed the principles of operation, benefits and potential applications of such tweezers. They document the popular designs of plasmonic nanostructures that have been used to create tweezers to date and the theories behind the generation of surface plasmon polaritons and the forces that they induce. They also discuss the opportunities for improving performance of the tweezers in the future and their applications in the areas of manipulation, sorting, characterization and sensing of objects, especially biological entities such as viruses, DNA, biomolecules and cells. |
| Databáze: | OpenAIRE |
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