Open AccessOptical tweezers with multiple optical forces using double-hologram interference
Author(s) -
Woei Ming Lee,
Yuan Xiao,
Dingyuan Tang
Publication year - 2003
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.11.000199
Subject(s) - optical tweezers , optics , holography , physics , angular momentum , interference (communication) , optical force , optical vortex , interferometry , azimuth , light beam , gaussian beam , michelson interferometer , beam (structure) , classical mechanics , channel (broadcasting) , electrical engineering , engineering
In earlier work, we introduced new ways of generating a series of interference patterns formed from Laguerre-Gaussian (LG) beams, which are being used as advanced optical tweezers in creating and manipulating three-dimensional structures. In this work, we have succeeded in demonstrating, for the first time to our knowledge, double LG and LG beams with a Gaussian-beam interference using a Michelson interferometer. We have been able to observe LG interference of unequal azimuthal charge by using just two holograms. This is a new type of optical tweezers because the tweezers have the ability to transfer orbital angular momentum, spin angular momentum, and optical gradient force simultaneously to microparticles. This provides a great opportunity for investigating the force interaction within a single laser beam.