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Tunable and polarization-controlled high-contrast bright and dark coherent resonances in potassium

  Articoli su Riviste JCR/ISI  (anno 2017)

Autori:  Gozzini, S; Fioretti, A; Lucchesini, A; Marmugi, L; Marinelli, C; Tsvetkov, S; Gateva, S; Cartaleva, S

Affiliazione Autori:  Istituto Nazionale di Ottica, INO-CNR, SS Pisa, Via Moruzzi 1, 56124 Pisa, Italy; Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK; Università di Siena, via Roma 56, 53100 Siena, Italy; Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria

Riassunto:  We demonstrate high-contrast electromagnetically induced absorption (EIA) bright resonances on the D-1 line of K-39 with characteristics comparable to those of the electromagnetically induced transparency (EIT) dark resonances observed in the same conditions. EIA is produced by the interaction of a weak probe beam with the atomic ground state driven in a degenerate coherent superposition by either a co- or counter-propagating pump beam. We have obtained an order of magnitude increase of the EIA

Rivista/Giornale:  OPTICS LETTERS
Volume n.:  42      Pagine da: 2930  a: 2933
Ulteriori informazioni:  Seventh Framework Programme (FP7) (PIRSES-GA-2012-295264); Consiglio Nazionale delle Ricerche (CNR) and Bulgarian Academy of Sciences (BAS) (CNR/BAS 2013-2015); Bulgarian National Science Fund (BNSF) (DN08-19/14.12.2016).
DOI: 10.1364/OL.42.002930


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