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Proceedings Paper

Characterisation of Au nanorod dynamics in optical tweezers via localised surface plasmon resonance spectroscopy
Author(s): Ana Andres-Arroyo; Scott Kemp; Wen Jun Toe; Fan Wang; Victoria Coleman; Peter J. Reece
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Paper 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.

Paper Details

Date Published: 16 September 2014
PDF: 5 pages
Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 91641I (16 September 2014); doi: 10.1117/12.2062465
Show Author Affiliations
Ana Andres-Arroyo, The Univ. of New South Wales (Australia)
Scott Kemp, The Univ. of New South Wales (Australia)
Wen Jun Toe, The Univ. of New South Wales (Australia)
Fan Wang, The Univ. of New South Wales (Australia)
Victoria Coleman, National Measurement Institute (Australia)
Peter J. Reece, The Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 9164:
Optical Trapping and Optical Micromanipulation XI
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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