Optical trapping of gold nanoparticles by cylindrical vector beam

Lu Huang, Honglian Guo*, Jiafang Li, Lin Ling, Baohua Feng, Zhi Yuan Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

131 Citations (Scopus)

Abstract

Optical trapping of gold nanoparticles is experimentally demonstrated using radially and azimuthally polarized beams. The transverse optical trapping stiffness of gold nanoparticles is measured. The radially polarized beam exhibits a higher trapping efficiency than the azimuthally polarized beam and the Gaussian beam. The transverse stiffness of particles with different diameters is measured experimentally and calculated via the discrete-dipole approximation method, and good agreement between theory and experiment is found.

Original languageEnglish
Pages (from-to)1694-1696
Number of pages3
JournalOptics Letters
Volume37
Issue number10
DOIs
Publication statusPublished - 15 May 2012
Externally publishedYes

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