Optimal collection of radiation emitted by a trapped atomic ensemble

EPJ Quantum Technology

Nikolaj Thomas Zinner¹  Thomas Bækkegaard¹  József Fortágh²  David Petrosyan³  Árpád Kurkó⁴  Peter Domokos⁴  András Vukics⁴ 

[1] Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark;Physikalisches Institut, Eberhard Karls Universität Tübingen, D-72076, Tübingen, Germany;Physikalisches Institut, Eberhard Karls Universität Tübingen, D-72076, Tübingen, Germany;Institute of Electronic Structure and Laser, Foundation for Research and Technology – Hellas, GR-70013, Heraklion, Crete, Greece;Wigner Research Centre for Physics, P.O. Box 49, H-1525, Budapest, Hungary;

关键词: Cold atoms;    Microwave;    Single photon source;    Fiber optics;    Gaussian optics;    Raman process;   

DOI  :  10.1140/epjqt/s40507-021-00102-1

来源: Springer

【 摘 要 】

Trapped atomic ensembles are convenient systems for quantum information storage in the long-lived sublevels of the electronic ground state and its conversion to propagating optical photons via stimulated Raman processes. Here we investigate a phase-matched emission of photons from a coherently prepared atomic ensemble. We consider an ensemble of cold atoms in an elongated harmonic trap with normal density distribution, and determine the parameters of paraxial optics to match the mode geometry of the emitted radiation and optimally collect it into an optical waveguide.

【 授权许可】

CC BY