Picture of a sphere with binary code

Making Strathclyde research discoverable to the world...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. It exposes Strathclyde's world leading Open Access research to many of the world's leading resource discovery tools, and from there onto the screens of researchers around the world.

Explore Strathclyde Open Access research content

Self-synchronization and dissipation-induced threshold in collective atomic recoil lasing

von Cube, C. and Kruse, D. and Zimmermann, C. and Courteille, P.W. and Robb, G.R.M. and Piovella, N. and Bonifacio, R. (2004) Self-synchronization and dissipation-induced threshold in collective atomic recoil lasing. Physical Review Letters, 93 (8). 083601-1. ISSN 0031-9007

[img]
Preview
PDF (strathprints002978.pdf)
strathprints002978.pdf

Download (186kB) | Preview

Abstract

Networks of globally coupled oscillators exhibit phase transitions from incoherent to coherent states. Atoms interacting with the counterpropagating modes of a unidirectionally pumped high-finesse ring cavity form such a globally coupled network. The coupling mechanism is provided by collective atomic recoil lasing, i.e., cooperative Bragg scattering of laser light at an atomic density grating, which is self-induced by the laser light. Under the rule of an additional friction force, the atomic ensemble is expected to undergo a phase transition to a state of synchronized atomic motion. We present the experimental investigation of this phase transition by studying the threshold behavior of this lasing process.