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Laser trapping of colloidal metal nanoparticles
Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden.
Örebro University, School of Science and Technology.ORCID iD: 0000-0002-2110-3071
Quantum Science Laboratory, School of Mathematics and Physics, University of Queensland, St. Lucia, Brisbane, Queensland, Australia .
Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China .
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2015 (English)In: ACS Nano, ISSN 1936-0851, E-ISSN 1936-086X, Vol. 9, no 4, 3453-3469 p.Article, review/survey (Refereed) Published
Abstract [en]

Optical trapping using focused laser beams (laser tweezers) has been proven to be extremely useful for contactless manipulation of a variety of small objects, including biological cells, organelles within cells, and a wide range of other dielectric micro- and nano-objects. Colloidal metal nanoparticles have drawn increasing attention in the field of optical trapping because of their unique interactions with electromagnetic radiation, caused by surface plasmon resonance effects, enabling a large number of nano-optical applications of high current interest. Here we try to give a comprehensive overview of the field of laser trapping and manipulation of metal nanoparticles based on results reported in the recent literature. We also discuss and describe the fundamentals of optical forces in the context of plasmonic nanoparticles, including effects of polarization, optical angular momentum, and laser heating effects, as well as the various techniques that have been used to trap and manipulate metal nanoparticles. We conclude by suggesting possible directions for future research.

Place, publisher, year, edition, pages
2015. Vol. 9, no 4, 3453-3469 p.
Keyword [en]
colloidal metal nanoparticles; interparticle forces; laser heating; laser tweezers; optical force; optical manipulation; optical torque; surface plasmon resonance
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-44814DOI: 10.1021/acsnano.5b00286ISI: 000353867000009PubMedID: 25808609Scopus ID: 2-s2.0-84928974923OAI: oai:DiVA.org:oru-44814DiVA: diva2:816328
Available from: 2015-06-03 Created: 2015-06-03 Last updated: 2017-10-17Bibliographically approved

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CiteExportLink to record
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