Characterisation of Au nanorod dynamics in optical tweezers via localised surface plasmon resonance spectroscopy

Ana Andres-Arroyo, Scott Kemp, Wen Jun Toe, Fan Wang, Victoria Coleman, Peter J. Reece*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)

Abstract

We present a study of the trapping properties of Au nanorods of different aspect ratios in an optical tweezers and comparison with other characterization techniques like transmission electron microscope (TEM) imaging and dynamic light scattering (DLS). This study provides information on the dynamics and orientation of Au nanorods inside an optical trap based on a time study of their localised surface plasmon resonance (LSPR) features. The results indicate that the orientation of the Au nanorods trapped in our optical tweezers varies with time and LSPR spectra can provide information on the angle of the nanorod with respect to the direction of propagation of the trapping laser.

Original languageEnglish
Title of host publicationOptical Trapping and Optical Micromanipulation XI
EditorsKishan Dholakia, Gabriel C. Spalding
Place of PublicationWashington, DC
PublisherSPIE
Number of pages5
ISBN (Electronic)9781628411911
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventOptical Trapping and Optical Micromanipulation XI - San Diego, United States
Duration: 17 Aug 201421 Aug 2014

Publication series

NameProceedings of SPIE
Volume9164
ISSN (Print)0277-786X

Other

OtherOptical Trapping and Optical Micromanipulation XI
CountryUnited States
CitySan Diego
Period17/08/1421/08/14

Keywords

  • nanorods
  • Optical trapping
  • optical tweezers
  • plasmonics

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