Group velocity of probe light pulse in an open lambda system
Data(s) |
2006
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Resumo |
The group velocity of the probe light pulse (GVPLP) propagating through an open Lambda-type atomic system with a spontaneously generated coherence is investigated when the weak probe and strong driving light fields have different frequencies. It is found that adjusting the detuning or Rabi frequency of the probe light field can realize switching of the GVPLP from subluminal to superluminal. Changing the relative phase between the probe and driving light. elds or atomic exit and injection rates can lead to GVPLP varying in a wider range, but cannot induce transformation of the property of the GVPLP. The absolute value of the GVPLP always increases with Rabi frequency of the driving light field increasing. For subluminal and superluminal propagation, the system always exhibits the probe absorption, and GVPLP is mainly determined by the slope of the steep dispersion. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Cui N;Fan XJ;Tian SF;Ma H;Li AY;徐至展.,J. Mod. Opt.,2006,53(8):1165-1176 |
Palavras-Chave | #SPONTANEOUSLY GENERATED COHERENCE #SPONTANEOUS EMISSION #POPULATION-INVERSION #PHASE-CONTROL #ATOMIC SYSTEM #DISPERSION #INTERFERENCE #PROPAGATION #GAIN #TRANSPARENCY |
Tipo |
期刊论文 |