Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Enhancement of electromagnetically-induced transparency in a Doppler broadened medium

Michael S. Scherman, O. S. Mishina, Pietro Lombardi, E. Giacobino, Julien Laurat

Published Jun 6, 2011• 0 citations
OpenAlex

Related papers

Dispersion properties of electromagnetically induced transparency under the Doppler broadening

Yu. I. Geller, D. E. Sovkov, A. T. Hakim’yanov +1 more

Russian Physics Journal•Mar 1, 2007•2 citations

Electromagnetically-induced transparency in Doppler-broadened five-level systems

Azeem B. Mirza, Suneel Pratap Singh

Pramana•Feb 1, 2014•3 citations

The effect of Kerr nonlinearity and Doppler broadening on slow light propagation

Hazrat Ali, Ziauddin Ziauddin, Iftikhar Ahmad

The influence of Kerr nonlinearity and Doppler broadening on the slow light propagation of a dispersive atomic medium is revisited using a four-level ?-type (87Rb) atomic system under the condition of electromagnetically induced transparency (EIT). The medium exhibits an EIT process which is accompanied by normal dispersion, i.e.,?sub-luminal (slow light) pulse propagation. In the presence of Kerr nonlinearity and the Doppler broadening effect the dispersion property of the proposed atomic medium is modified, which leads to enhancement of the positive group index of the medium. The combined effect of Kerr nonlinearity and Doppler broadening on slow light propagation inside the medium is the major motivation for this work.

Laser Physics•Jan 17, 2014•22 citations

Narrowing of electromagnetically induced transparency resonance in a Doppler-broadened medium

Ali Javan, Olga A. Kocharovskaya, Hwang Lee +1 more

We derive an analytic expression for the linewidth of electromagnetically induced transparency (EIT) resonance in a Doppler-broadened system. It is shown here that for relatively low intensity of the driving field the EIT linewidth is proportional to the square root of intensity and is independent of the Doppler width, similar to the laser-induced line narrowing effect described by Feld and Javan. In the limit of high intensity we recover the usual power-broadening case where the EIT linewidth is proportional to the intensity and inversely proportional to the Doppler width.

arXiv:physics/0108003•Physical Review A•Jul 15, 2002•201 citations

Electromagnetically Induced Self-Imaging in Four-Level Doppler Broadening Medium

王春芳, Feng Wang, 杨利茹

Chinese Physics Letters•Jan 1, 2015•0 citations

Electromagnetic induced transparency in the Doppler broadened cascade transition with multiple excited levels

Vineet Bharti, Ajay Wasan

A theoretical model using the density matrix approach has been presented to show the influence of multiple excited states on electromagnetically induced transparency (EIT) in a cascade-type Doppler broadened medium. A five-level system has been considered that is a simple case of the 87 Rb atom. In a room temperature vapour, when the Doppler broadening is comparable with hyperfine splitting in the middle states, there is a strong reduction in EIT. By performing the thermal averaging in the five-level Doppler broadened system, we observe an asymmetric transparency that has already been shown in most of the experimental work.

Journal of Physics B Atomic Molecular and Optical Physics•Aug 30, 2012•32 citations
The influence of Kerr nonlinearity and Doppler broadening on the slow light propagation of a dispersive atomic medium is revisited using a four-level ?-type (87Rb) atomic system under the condition of electromagnetically induced transparency (EIT). The medium exhibits an EIT process which is accompanied by normal dispersion, i.e.,?sub-luminal (slow light) pulse propagation. In the presence of Kerr nonlinearity and the Doppler broadening effect the dispersion property of the proposed atomic medium is modified, which leads to enhancement of the positive group index of the medium. The combined effect of Kerr nonlinearity and Doppler broadening on slow light propagation inside the medium is the major motivation for this work.
We derive an analytic expression for the linewidth of electromagnetically induced transparency (EIT) resonance in a Doppler-broadened system. It is shown here that for relatively low intensity of the driving field the EIT linewidth is proportional to the square root of intensity and is independent of the Doppler width, similar to the laser-induced line narrowing effect described by Feld and Javan. In the limit of high intensity we recover the usual power-broadening case where the EIT linewidth is proportional to the intensity and inversely proportional to the Doppler width.
A theoretical model using the density matrix approach has been presented to show the influence of multiple excited states on electromagnetically induced transparency (EIT) in a cascade-type Doppler broadened medium. A five-level system has been considered that is a simple case of the 87 Rb atom. In a room temperature vapour, when the Doppler broadening is comparable with hyperfine splitting in the middle states, there is a strong reduction in EIT. By performing the thermal averaging in the five-level Doppler broadened system, we observe an asymmetric transparency that has already been shown in most of the experimental work.