Abstract
The interaction of an atomic gas confined inside a cavity containing a strong electromagnetic field is numerically and theoretically investigated in a regime where recoil effects are not negligible. The spontaneous appearance of a density grating (atomic bunching) accompanied by the onset of a coherent, back-propagating electromagnetic wave is found to be ruled by a continuous phase transition. Numerical tests allow us to convincingly prove that the transition is steered by the appearence of a periodic atomic density modulation. Consideration of different experimental relaxation mechanisms induces us to analyze the problem in nearly analytic form, in the large detuning limit, using both a Vlasov approach and a Fokker-Planck description. The application of our predictions to recent experimental findings, reported by Kruse [Phys. Rev. Lett., 91 183601 (2003) ], yields a semiquantitative agreement with the observations.
| Original language | English |
|---|---|
| Article number | 023405 |
| Number of pages | 10 |
| Journal | Physical Review A |
| Volume | 70 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Aug 2004 |
Keywords
- induced resonances
- 2-level atoms
- sodium vapor
- laser
- gain
- spectroscopy
- resonator
- gratings
- driven
- line
Cite this
Self-generated cooperative light emission induced by atomic recoil. / Javaloyes, J ; Perrin, M ; Lippi, G L ; Politi, A .
In: Physical Review A, Vol. 70, No. 2, 023405, 08.2004.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Self-generated cooperative light emission induced by atomic recoil
AU - Javaloyes, J
AU - Perrin, M
AU - Lippi, G L
AU - Politi, A
PY - 2004/8
Y1 - 2004/8
N2 - The interaction of an atomic gas confined inside a cavity containing a strong electromagnetic field is numerically and theoretically investigated in a regime where recoil effects are not negligible. The spontaneous appearance of a density grating (atomic bunching) accompanied by the onset of a coherent, back-propagating electromagnetic wave is found to be ruled by a continuous phase transition. Numerical tests allow us to convincingly prove that the transition is steered by the appearence of a periodic atomic density modulation. Consideration of different experimental relaxation mechanisms induces us to analyze the problem in nearly analytic form, in the large detuning limit, using both a Vlasov approach and a Fokker-Planck description. The application of our predictions to recent experimental findings, reported by Kruse [Phys. Rev. Lett., 91 183601 (2003) ], yields a semiquantitative agreement with the observations.
AB - The interaction of an atomic gas confined inside a cavity containing a strong electromagnetic field is numerically and theoretically investigated in a regime where recoil effects are not negligible. The spontaneous appearance of a density grating (atomic bunching) accompanied by the onset of a coherent, back-propagating electromagnetic wave is found to be ruled by a continuous phase transition. Numerical tests allow us to convincingly prove that the transition is steered by the appearence of a periodic atomic density modulation. Consideration of different experimental relaxation mechanisms induces us to analyze the problem in nearly analytic form, in the large detuning limit, using both a Vlasov approach and a Fokker-Planck description. The application of our predictions to recent experimental findings, reported by Kruse [Phys. Rev. Lett., 91 183601 (2003) ], yields a semiquantitative agreement with the observations.
KW - induced resonances
KW - 2-level atoms
KW - sodium vapor
KW - laser
KW - gain
KW - spectroscopy
KW - resonator
KW - gratings
KW - driven
KW - line
U2 - 10.1103/PhysRevA.70.023405
DO - 10.1103/PhysRevA.70.023405
M3 - Article
VL - 70
JO - Physical Review A
JF - Physical Review A
SN - 1050-2947
IS - 2
M1 - 023405
ER -