Interfacing light and single atoms with a lens

Meng Khoon Tey; Syed Abdullah Aljunid; Florian Huber; Brenda Chng; Zilong Chen; Gleb Maslennikov; Christian Kurtsiefer

doi:10.1117/12.810207

26 January 2009 Interfacing light and single atoms with a lens

Meng Khoon Tey, Syed Abdullah Aljunid, Florian Huber, Brenda Chng, Zilong Chen, Gleb Maslennikov, Christian Kurtsiefer

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Proceedings Volume 7236, Quantum Communications Realized II; 723606 (2009) https://doi.org/10.1117/12.810207
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

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.

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Meng Khoon Tey, Syed Abdullah Aljunid, Florian Huber, Brenda Chng, Zilong Chen, Gleb Maslennikov, and Christian Kurtsiefer "Interfacing light and single atoms with a lens", Proc. SPIE 7236, Quantum Communications Realized II, 723606 (26 January 2009); https://doi.org/10.1117/12.810207

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KEYWORDS

Chemical species

Scattering

Light scattering

Wavefronts

Spherical lenses

Laser scattering

Polarization

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