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Laser Spectroscopy Group

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     Members:


        Arturo Lezama   (Dr, group leader)
        Sergio Barreiro   (Dr)
        Horacio Failache   (Dr Eng)
        Paulo Valente   (Dr)
        Lorenzo Lenci   (Dr)
        Santiago Villalba   (PhD student)

 The Laser Spectroscopy Group of the Physics Institute of the Engineering 
 Faculty (at the State University of Uruguay) develop experimental and  
 theoretical research on laser-atom interaction. We use diode lasers for  
 high resolution spectroscopy on alkaline atoms (rubidium) in vapor cells, 
 atomic beam and magneto-optical trap. Our main current interest 
 concerns the spectroscopic manifestations of quantum coherence. 

 Recent publications:

      "Light-induced atomic desorption and diffusion of Rb from porous alumina",
       S. Villalba, H. Failache and A. Lezama.
       Phys. Rev. A 81, 032901 (2010) .

     "Raman-Ramsey multizone spectroscopy in a pure rubidium vapor cell",
      H. Failache, L. Lenci and A. Lezama.
      Phys. Rev. A 81, 023801 (2010). 

     "Dark resonances in thin cells for miniaturized atomic frequency references",
      L. Lenci, A. Lezama and H. Failache.
      Optics Letters 34(4), 425-427 (2009).

      "Diode laser noise-spectroscopy of low-frequency atomic fluctuations in rubidium vapor",
      P. Valente, H. Failache and A. Lezama.
      Eur. Phys. J D 50, 133-140 (2008).
 
      "Numerical investigation of the quantum fluctuations of optical fields 
       transmitted through an atomic medium",
      A. Lezama, P. Valente, H. Failache, M. Martinelli, P. Nussenzveig.
      Phys. Rev. A 77, 013806 (2008).

      "Theoretical study of dark resonances in micro-metric thin cells", 
      H. Failache, L. Lenci, A. Lezama, D. Bloch and M. Ducloy.
      Phys. Rev. A 76, 053826 (2007).

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Intensity distribution of a laser field inside 
a Rb vapor cell that allows a Ramsey type
spectroscopy.