Arturo Lezama

STEEP ANOMALOUS DISPERSION IN COHERENTLY PREPARED RB VAPOR

Steep dispersion of opposite signs in driven degenerate two-level atomic transitions have been predicted and observed on the

Spectroscopic observation of the rotational doppler effect

{D}_{2}

Dynamics of a stored Zeeman coherence grating in an external magnetic field

line of

Electromagnetically induced transparency and absorption due to optical and ground-state coherences in 6Li

{}^{87}\mathrm{Rb}

Polarization self-rotation in ultracold atomicRb87

in an optically thin vapor cell. The intensity dependence of the anomalous dispersion has been studied. The maximum observed value of anomalous dispersion (

A magnetometer suitable for measurement of the Earth's field based on transient atomic response

\mathrm{dn}/d\ensuremath{\nu}\ensuremath{\simeq}\ensuremath{-}6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}11}{\mathrm{Hz}}^{\ensuremath{-}1}

'Storage of light' in an atomic medium using electromagnetically induced absorption

) corresponds to a negative group velocity

Theoretical study of dark resonances in micrometric thin cells

{V}_{g}\ensuremath{\simeq}\ensuremath{-}c/23000

Dark resonances in thin cells for miniaturized atomic-frequency references

.

Rb optical resonance inside a random porous medium.

We report on the first spectroscopic observation of the rotational Doppler shift associated with light beams carrying orbital angular momentum. The effect is evidenced as the broadening of a Hanle electromagnetically induced transparency coherence resonance on Rb vapor when the two incident Laguerre-Gaussian laser beams have opposite topological charges. The observations closely agree with theoretical predictions.