Open AccessOptical guiding of microscopic particles in femtosecond and continuous wave Bessel light beams
Author(s) -
Helen Little,
C.T.A. Brown,
V. Garcés-Chávez,
W. Sibbett,
Kishan Dholakia
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.002560
Subject(s) - femtosecond , optics , bessel beam , bessel function , materials science , continuous wave , optical tweezers , light beam , laser , physics
Optical guiding of microscopic particles is studied and compared for femtosecond and continuous wave Bessel light beams. We confirm that optical guiding is an average power effect and observe no difference in the guiding velocities for non-fluorescing polymer microspheres. Additionally, we observe second harmonic generation of guided KTP particles. This observation opens up the prospect for optical identification of guided cells for sorting purposes.