Atom microtraps based on near-field Fresnel diffraction

Bandi, Thejesh N.; Minogin, Vladimir G.; Nic Chormaic, Síle

Atom microtraps based on near-field Fresnel diffraction

Files

TNB_AtomAV2008.pdf(482.09 KB)

Accepted Version

Date

2008-07

Authors

Bandi, Thejesh N.

Minogin, Vladimir G.

Nic Chormaic, Síle

Publisher

American Physical Society

Published Version

10.1103/PhysRevA.78.013410

Abstract

We propose and present a quantitative analysis of neutral atom microtraps based on optical near fields produced by the diffraction of a laser wave on small apertures in a thin screen. We show that near-field atom microtraps are capable of storing atoms in micron-sized regions, with estimated trap lifetimes of about 1 s, when using a moderate laser intensity of about 10 W∕cm2. The depth of the proposed Fresnel atom microtraps is about 0.1 mK. An array of such atom microtraps could have applications to site-selective manipulation of cold atoms.

Keywords

Atom manipulation in atomic physics

Citation

BANDI, T. N., MINOGIN, V. G. & NIC CHORMAIC, S. 2008. Atom microtraps based on near-field Fresnel diffraction. Physical Review A, 78(1), 013410.