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Proceedings Paper

Interfacing light and single atoms with a lens
Author(s): Meng Khoon Tey; Syed Abdullah Aljunid; Florian Huber; Brenda Chng; Zilong Chen; Gleb Maslennikov; Christian Kurtsiefer
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Paper Abstract

We investigate the interaction between a single atom and a light field in the strong focusing regime. Such a configuration is subject to recent experimental work not only with atoms but also molecules and other atom-like systems such as quantum dots. We derive the scattering probability for photons by such a microscopic object modeled by a two-level system, starting with a Gaussian beam as the spatial mode of the light field. The focusing by an ideal lens is modeled by adopting a field with spherical wave fronts compatible with Maxwell equations. Using a semi-classical approach for the atom-field interaction, we predict a scattering probability of photons by a single atom of up to 98% for realistic focusing parameters. Experimental results for different focusing strengths are compared with our theoretical model.

Paper Details

Date Published: 26 January 2009
PDF: 14 pages
Proc. SPIE 7236, Quantum Communications Realized II, 723606 (26 January 2009); doi: 10.1117/12.810207
Show Author Affiliations
Meng Khoon Tey, National Univ. of Singapore (Singapore)
Syed Abdullah Aljunid, National Univ. of Singapore (Singapore)
Florian Huber, Technical Univ. of Munich (Germany)
Brenda Chng, National Univ. of Singapore (Singapore)
Zilong Chen, Institute of Materials Research and Engineering (Singapore)
Gleb Maslennikov, National Univ. of Singapore (Singapore)
Christian Kurtsiefer, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 7236:
Quantum Communications Realized II
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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