EPJ Web of Conferences
Volume 57, 2013ICAP 2012 – 23rd International Conference on Atomic Physics
|Number of page(s)||10|
|Section||Quantum optics and cavity QED|
|Published online||30 August 2013|
A quasi-continuous superradiant Raman laser with < 1 intracavity photon
1 JILA, University of Colorado and NIST, and Dept. of Physics, University of Colorado, Boulder, Colorado 80309, USA
2 Current Affiliation: Tech-X Corp., 5621 Arapahoe Ave. Ste. A, Boulder, Colorado 80303, USA
a e-mail: email@example.com
Steady-state collective emission from ensembles of laser cooled atoms has been proposed as a method for generating sub-millihertz linewidth optical lasers, with potential for broad impacts across science and technology. We have built a model system that tests key predictions for such active oscillators using a Raman laser with laser cooled atoms as the gain medium. The laser operates deep in the bad-cavity, or superradiant, regime of laser physics, where the cavity decay rate is much greater than the atomic coherence decay rate. Specifically, we demonstrate that a system of 106 87Rb atoms trapped in a 1D standing wave optical lattice can spontaneously synchronize and collectively emit a quasi-continuous coherent optical output, even when the intracavity field contains on average < 1 photon.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.