Strong electromagnetically induced transparency in atomic media with large residual Doppler broadening

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dc.creatorde Araujo, Luis E. E.
dc.creatorCarvalho, Silvania A.
dc.creatorSoares, Luciano S.
dc.creatorSoares, Antonio A.
dc.creatorMirage, Armando
dc.creatorPereira, Daniel
dc.creatorCruz, Flavio C.
dc.date2006-11-30
dc.date.accessioned2026-07-07T07:34:17Z
dc.date.available2026-07-07T07:34:17Z
dc.descriptionElectromagnetically induced transparency and coherent population trapping were observed in a hot (1000 K) calcium vapor embedded into an electrical gas discharge. Unexpectedly large transparencies (of up to 70%) were observed under very unfavorable conditions: probe wavelength shorter than the coupling wavelength, and coupling Rabi frequency significantly smaller than the residual Doppler linewidth of the two photon transition. We developed a theoretical model that shows that the observed results are due to the combined effects of a strong probe beam and a small open character of the atomic system. Coherent population trapping also manifests itself as a change in the impedance of the gas discharge, and the phenomenon can be probed with high sensitivity via the optogalvanic effect.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0611291
dc.identifierhttp://arxiv.org/abs/quant-ph/0611291
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/119757
dc.subjectQuantum Physics
dc.titleStrong electromagnetically induced transparency in atomic media with large residual Doppler broadening
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