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Time-domain Ramsey-narrowed sub-kHz electromagnetically induced absorption in atomic potassium

  Articoli su Riviste JCR/ISI  (anno 2019)

Autori:  Gozzini S., Lenci L., Marmugi L., Renzoni F., Lucchesini L., Fioretti A

Affiliazione Autori:  CNR-INO SS Pisa Facultad de Ingeniería, Instituto de Física, Universidad de la República, J. Herrera y Reissig 565, 11300 Montevideo, Uruguay 2 Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom

Riassunto:  The use of electromagnetically induced absorption (EIA) in sensing and metrology has been thus far hindered by saturation effects, which severely degrade its linewidth. Here we propose, and experimentally demonstrate, that time-dependent Ramsey spectroscopy in potassium vapour overcomes the detrimental effect of saturation. We observe sub-kHz Ramsey fringes, with full control of the EIA resonance characteristics. Combined with the efficient optical pumping associated to the K D1 line, the present work demonstrates an EIA scheme suitable for sensing and metrological applications.

Rivista/Giornale:  JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume n.:  52      Pagine da: 085002-1  a: 085002-7
DOI: 10.1088/1361-6455/ab0fc5


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