Nonlinear optics via double dark resonances
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Double dark resonances originate from a coherent perturbation of a system displaying electromagnetically induced transparency. We experimentally show and theoretically confirm that this leads to the possibility of extremely sharp resonances prevailing even in the presence of considerable Doppler broadening. A gas of Rb-87 atoms is subjected to a strong drive laser and a weak probe laser and a radio frequency field, where the magnetic coupling between the Zeeman levels leads to nonlinear generation of a comb of sidebands.
DescriptionJournals published by the American Physical Society can be found at http://publish.aps.org/
SubjectELECTROMAGNETICALLY INDUCED TRANSPARENCY