A calcium ion in a cavity as a controlled single-photon source

Keller, M., Lange, B., Hayasaka, K., Lange, W. and Walther, H. (2004) A calcium ion in a cavity as a controlled single-photon source. New Journal of Physics, 6. p. 95. ISSN 1367-2630

Download (843kB) | Preview
Official URL: http://www.njp.org/


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.

Item Type: Article
Keywords: Calcium ion; single-photon source
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Gemma Farrell
Date Deposited: 12 Mar 2008
Last Modified: 13 Mar 2017 20:59
URI: http://srodev.sussex.ac.uk/id/eprint/1640
Google Scholar:56 Citations

View download statistics for this item

📧 Request an update