Next Article in Journal / Special Issue
Cavity Optomechanics with Ultra Cold Atoms in Synthetic Abelian and Non-Abelian Gauge Field
Previous Article in Journal
Electron Impact Excitation and Dielectronic Recombination of Highly Charged Tungsten Ions
Previous Article in Special Issue
Cavity Quantum Electrodynamics of Continuously Monitored Bose-Condensed Atoms
Open AccessArticle

Two-Photon Collective Atomic Recoil Lasing

Department of Physics & SUPA, University of Strathclyde, John Anderson Building, 107 Rottenrow, Glasgow G4 0NG, UK
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Jonathan Goldwin and Duncan O’Dell
Atoms 2015, 3(4), 495-508; https://doi.org/10.3390/atoms3040495
Received: 4 September 2015 / Accepted: 30 October 2015 / Published: 20 November 2015
(This article belongs to the Special Issue Cavity Quantum Electrodynamics with Ultracold Atoms)
We present a theoretical study of the interaction between light and a cold gasof three-level, ladder configuration atoms close to two-photon resonance. In particular, weinvestigate the existence of collective atomic recoil lasing (CARL) instabilities in differentregimes of internal atomic excitation and compare to previous studies of the CARL instabilityinvolving two-level atoms. In the case of two-level atoms, the CARL instability is quenchedat high pump rates with significant atomic excitation by saturation of the (one-photon)coherence, which produces the optical forces responsible for the instability and rapid heatingdue to high spontaneous emission rates. We show that in the two-photon CARL schemestudied here involving three-level atoms, CARL instabilities can survive at high pump rateswhen the atoms have significant excitation, due to the contributions to the optical forces frommultiple coherences and the reduction of spontaneous emission due to transitions betweenthe populated states being dipole forbidden. This two-photon CARL scheme may form thebasis of methods to increase the effective nonlinear optical response of cold atomic gases. View Full-Text
Keywords: collective atomic recoil; instabilities; two-photon collective atomic recoil; instabilities; two-photon
Show Figures

Figure 1

MDPI and ACS Style

McKelvie, J.A.; Robb, G.R. Two-Photon Collective Atomic Recoil Lasing. Atoms 2015, 3, 495-508.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop