Design of a mode converter for efficient light-atom coupling in free space

Abstract

In this article, we describe how to develop a mode converter that transforms a plane electromagnetic wave into an inward moving dipole wave. The latter one is intended to bring a single atom or ion from its ground state to its excited state by absorption of a single photon wave packet with near-100% efficiency.

RevTex4, 3 figures, revised version, accepted for publication at Appl. Phys. B

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• Reversible state transfer between light and a single trapped atom
• Laser driven atoms in half-cavities
• Strong extinction of a laser beam by a single molecule
• Strong extinction of a far-field laser beam by a single quantum dot
• Atoms, dipole waves, and strongly focused light beams
• A single atom in free space as a quantum aperture

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