Observation of Ultra-narrow Electromagnetically Induced Transparency and Slow Light using Purely Electronic Spins in a Hot Atomic Vapor
Fabienne Goldfarb,Joyee Ghosh,Joyee Ghosh,M. David,J. Ruggiero,Thierry Chanelière,J.-L. Le Gouët,H. Gilles,Rupamanjari Ghosh,Fabien Bretenaker +9 more
TLDR
In this article, the EIT windows were obtained for purely electronic spins in the presence of Doppler broadening and the positive role of collisions was emphasized through measurements of the power dependence of EIT resonance.Abstract:
Electromagnetically induced transparency (EIT) is observed in gaseous 4He at room temperature. Ultra-narrow (less than 10 kHz) EIT windows are obtained for the first time for purely electronic spins in the presence of Doppler broadening. The positive role of collisions is emphasized through measurements of the power dependence of the EIT resonance. Measurement of slow light opens up possible ways to applications.read more
Citations
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Journal ArticleDOI
Colloquium: Coherent diffusion of polaritons in atomic media
TL;DR: In this paper, the effect of coherent diffusion on key Raman processes, namely, Raman spectroscopy, slow polariton propagation, and stored light, are reviewed in this Colloquium.
Journal ArticleDOI
Photon lifetime in a cavity containing a slow-light medium
T. Lauprêtre,C. Proux,Rupamanjari Ghosh,Sylvain Schwartz,Fabienne Goldfarb,Fabien Bretenaker +5 more
TL;DR: The results definitely prove that the lifetime of the cavity photons is governed by the group velocity of light in the cavity and not its phase velocity.
Journal ArticleDOI
Electromagnetically-induced transparency, slow light, and negative group velocities in a room temperature vapor of 4He∗
TL;DR: Goldfarb et al. as discussed by the authors showed that it is possible to use optically detuned resonances (Fano-like profiles) to see a transition from slow light to negative group velocity.
Journal ArticleDOI
Interacting double dark resonances in a hot atomic vapor of helium
TL;DR: In this paper, the authors experimentally and theoretically study two different tripod configurations using metastable helium, with the probe field polarization perpendicular and parallel to the quantization axis, defined by an applied weak magnetic field, and observe destructive interference between the two dark resonances inducing an extra absorption peak at the line center.
Dissertation
Propagation de lumière dans l'hélium métastable : stockage, amplification, fluctuations et bruit quantique.
TL;DR: In this article, the propagation of quantique de lumiere is investigated in the presence of coherentness coherentes of populations ultrafines and montre qu'elles permettent de stocker efficacement a quadrature specifique d'un champ lumineux.
References
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Journal ArticleDOI
Influence of coherent Raman scattering on coherent population trapping in atomic sodium vapor
Vincent Wong,Ryan S. Bennink,Alberto M. Marino,Robert W. Boyd,Carlos R. Stroud,Frank A. Narducci +5 more
TL;DR: In this article, coherent Stokes and anti-Stokes Raman scattering influence coherent population trapping in an atomic sodium vapor cell and induced transparency, induced absorption, and gain features, all of subnatural linewidth.
Journal ArticleDOI
Photon lifetime in a cavity containing a slow-light medium
T. Lauprêtre,C. Proux,Rupamanjari Ghosh,Sylvain Schwartz,Fabienne Goldfarb,Fabien Bretenaker +5 more
TL;DR: The results definitely prove that the lifetime of the cavity photons is governed by the group velocity of light in the cavity and not its phase velocity.
Journal ArticleDOI
Electromagnetically-induced transparency, slow light, and negative group velocities in a room temperature vapor of 4He∗
TL;DR: Goldfarb et al. as discussed by the authors showed that it is possible to use optically detuned resonances (Fano-like profiles) to see a transition from slow light to negative group velocity.
Journal ArticleDOI
Rabi-Lorentzian Profile of an Atomic Resonance Obtained with Gaussian Beams
TL;DR: It is demonstrated that the interaction between atoms and a Gaussian beam changes the Lorentzian resonance into a so-called Rabi-Lorentzia resonance profile, which could play a role in the search of high precision in the measurement of fundamental constants.
Journal ArticleDOI
Interacting double dark resonances in a hot atomic vapor of helium
TL;DR: In this paper, the authors experimentally and theoretically study two different tripod configurations using metastable helium, with the probe field polarization perpendicular and parallel to the quantization axis, defined by an applied weak magnetic field, and observe destructive interference between the two dark resonances inducing an extra absorption peak at the line center.
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