Reduced model for the description of radiation-matter interaction including atomic recoil

Year: 2003

Authors: Javaloyes J., Lippi GL., Politi A.

Autors Affiliation: Institut Non Linéaire de Nice, UMR 6618 CNRS, Univer. de Nice-Sophia Antipolis 1361 Route des Lucioles, 06560 Valbonne, France;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: We show that a model for the collective atomic recoil laser, previously introduced to include collisions with an external buffer gas, can be reduced to a single dynamical equation for the probe amplitude. This is the result of a clever adiabatic elimination of the atomic variables and of the assumption of a negligible effect of the probe field onto the atomic motion. This reduced model provides a fairly accurate description of the phase diagram of the original set of equations and allows for the investigation of more realistic regimes, where the direct simulation of the full model would be otherwise unfeasible. As a result, we find that the onset of a coherent field can be either described by a second- or first-order transition, the former scenario being observable only below a given temperature. Moreover, the first-order transition is accompanied by an intrinsic optical bistability region.

Journal/Review: PHYSICAL REVIEW A

Volume: 68 (3)      Pages from: 33405-1  to: 33405-13

KeyWords: Gas-laser Amplifier; Induced Resonances; Pump-probe; Spontaneous Emission; Line; Fluorescence; Absorption; Light; Pressure; Gratings
DOI: 10.1103/PhysRevA.68.033405

ImpactFactor: 2.589
Citations: 4
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10
References taken from IsiWeb of Knowledge: (subscribers only)

Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here