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A calcium ion in a cavity as a controlled single-photon source
journal contributionposted on 2023-06-08, 00:00 authored by Matthias KellerMatthias Keller, B Lange, K Hayasaka, W Lange, H Walther
We present a single calcium ion, coupled to a high-finesse cavity, as an almost ideal system for the controlled generation of single photons. Photons from a pump beam are Raman-scattered by the ion into the cavity mode, which subsequently emits the photon into a well-defined output channel. In contrast with comparable atomic systems, the ion is localized at a fixed position in the cavity mode for indefinite times, enabling truly continuous operation of the device. We have performed numeric calculations to assess the performance of the system and present the first experimental indication of single-photon emission in our set-up.
- Published version
JournalNew Journal of Physics
Department affiliated with
- Physics and Astronomy Publications
NotesThe paper thoroughly analyses ion-trap single-photon production in a cavity. As team leader, W.L. contributed extensive numerical modeling of the experiment. M.K. was the principal scientist performing the largest share of laboratory work. K.H. and B.L contributed parts of the laser system and H.W. provided funding.
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