Chinese Optics Letters, 2006, 4 (1): 0155, Published Online: Jun. 6, 2006
Absorption resonances in 'Lambda'-type three-level system in cesium vapor cell with buffer gas Download: 573次
Abstract
We report experimentally the transformation from the electromagnetically induced transparency (EIT) resonance to a dispersion-like signal and eventually to a nearly symmetric absorption resonance as coupling detuning increases in 'Lambda'-type three-level system in the cesium vapor cell with buffer gas at room temperature. The observed absorption resonance occupies some remarkable properties of the strong amplitude and the narrow linewidth in comparison with the case without buffer gas. The relation between linewidth of the enhanced absorption resonance and buffer gas pressure is studied. With pressure increasing, linewidth of the absorption resonance becomes narrow. The sub-natural linewidth is observed in Doppler-broadened cesium vapor cell in our experiment. The experimental results are in qualitative agreement with the numerical simulations.
Jie Ma, Yanting Zhao, Lirong Wang, Jianming Zhao, Liantuan Xiao, Suotang Jia. Absorption resonances in 'Lambda'-type three-level system in cesium vapor cell with buffer gas[J]. Chinese Optics Letters, 2006, 4(1): 0155.