Open AccessOptical trapping of micrometer-sized dielectric particles by cylindrical vector beams
Author(s) -
Yuichi Kozawa,
Shunichi Sato
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.010828
Subject(s) - optical tweezers , optics , trapping , polarization (electrochemistry) , materials science , radial polarization , transverse plane , optical force , beam (structure) , dielectric , micrometer , light beam , laser beams , optoelectronics , physics , laser , laser beam quality , chemistry , biology , engineering , ecology , structural engineering
Single-beam optical trapping of micrometer-sized dielectric particles is experimentally demonstrated using radially and azimuthally polarized beams. The axial and transverse optical trapping efficiencies of glass and polystyrene beads suspended in water are measured. The radially polarized beam exhibited the highest trapping efficiency in the axial direction due to the p polarization of the radial polarization on the particle surface. On the other hand, the azimuthally polarized beam had a higher transverse trapping efficiency than the radially polarized beam. These results are consistent with numerical predictions.