Open AccessTwo dimensional interferometric optical trapping of multiple particles and Escherichia coli bacterial cells using a lensed multicore fiber
Author(s) -
A. L. Barron,
A. K. Kar,
Thomas J. Aspray,
Andrew J. Waddie,
Mohammad R. Taghizadeh,
Henry T. Bookey
Publication year - 2013
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.21.013199
Subject(s) - optics , interferometry , optical tweezers , trapping , optical fiber , materials science , core (optical fiber) , optoelectronics , physics , biology , ecology
Two dimensional interferometric trapping of multiple microspheres and Escherichia coli has been demonstrated using a multicore fiber lensed with an electric arc fusion splicer. Light was coupled evenly into all four cores using a diffractive optical element. The visibility of the fringes and also the appearance of the lattice can be altered by rotating a half wave-plate. As a result the particles can be manipulated from one dimensional trapping to two dimensional trapping or a variety of different two dimensional arrangements. The ability to align bacterial populations has potential application for quorum sensing, floc and biofilm and, metabolic co-operation studies.