Open AccessOptical trapping performance of dielectric-metallic patchy particles
Author(s) -
Joseph L. Lawson,
Nathan J. Jenness,
Robert L. Clark
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.033956
Subject(s) - materials science , trapping , optical tweezers , dielectric , stack (abstract data type) , particle (ecology) , optics , metrology , optical force , composite number , optoelectronics , composite material , physics , programming language , geology , ecology , oceanography , computer science , biology
We demonstrate a series of simulation experiments examining the optical trapping behavior of composite micro-particles consisting of a small metallic patch on a spherical dielectric bead. A full parameter space of patch shapes, based on current state of the art manufacturing techniques, and optical properties of the metallic film stack is examined. Stable trapping locations and optical trap stiffness of these particles are determined based on the particle design and potential particle design optimizations are discussed. A final test is performed examining the ability to incorporate these composite particles with standard optical trap metrology technologies.