科研之友
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摘要
We report on observations of four-wave mixing in rubidium vapor via two-photon resonant excitation with nd and (n + 2)s states, for n = 14-20. The intensity of the generated beam is studied in a collinear configuration, and the results are consistent with the predictions of a theoretical model based on the semiclassical Maxwell-Bloch equations, considering interference effects associated with multiple excitation pathways and with internally generated fields. We have also observed spectral broadening of the two-photon resonant lines, which is well described by a linear dependence on atomic density, in accordance with collision-induced broadening.
- 出版日期2014-7
