Journal
PHYSICAL REVIEW A
Volume 79, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.061803
Keywords
atom-photon collisions; Doppler broadening; quantum optics; rubidium
Categories
Funding
- NSFC [10725416, 60678029]
- National Basic Research Program of China [2006CB921101]
- NSFC Project for Excellent Research Team [60821004]
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Multi-normal-mode splitting peaks are experimentally observed in a system with Doppler-broadened two-level atoms inside a relatively long optical cavity. In this system, the atom-cavity interaction can reach the superstrong-coupling condition with atom-cavity coupling strength g root N to be near or larger than the cavity free-spectral range Delta(FSR). In such case, normal-mode splitting can occur in many cavity longitudinal modes to generate the multi-normal-mode splitting peaks, which can be well explained by the linear-dispersion enhancement due to the largely increased atomic density in the cavity. Many new interesting phenomena might come out of this superstrong atom-cavity coupling regime.
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