Single-atom detection using whispering gallery modes of microdisk resonators
Quantum Physics
2009-11-10 v1
Abstract
We investigate the possibility of using dielectric microdisk resonators for the optical detection of single atoms trapped and cooled in magnetic microtraps near the surface of a substrate. The bound and evanescent fields of optical whispering gallery modes are calculated and the coupling to straight waveguides is investigated using finite-difference time domain solutions of Maxwell's equations. Results are compared with semi-analytical solutions based on coupled mode theory. We discuss atom detection efficiencies and the feasibility of non-destructive measurements in such a system depending on key parameters such as disk size, disk-waveguide coupling, and scattering losses.
Cite
@article{arxiv.quant-ph/0407229,
title = {Single-atom detection using whispering gallery modes of microdisk resonators},
author = {Michael Rosenblit and Peter Horak and Steve Helsby and Ron Folman},
journal= {arXiv preprint arXiv:quant-ph/0407229},
year = {2009}
}
Comments
10 pages, 10 fugures