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

Suppression and Subsistence of Fano EIT Transmission Wndows in Plasmonic-Vapor System

Liron Stern, Meir Y. Grajower, Uriel Levy

Published Jan 1, 2015• 0 citations
Publisher

Abstract

We report on the sub Doppler transmission characteristics of a pump-probe V-type surface plasmon and atomic system. Suppression and subsistence of EIT windows is demonstrated due to the unique character of the plasmonic-atomic hybrid system.
DOI
10.1364/cleo_qels.2015.fm3e.8

Related papers

Non-linear Fano interactions in plasmonic-vapor system

Liron Stern, Meir Y. Grajower, Uriel Levy

Linear and non-linear Fano interactions in a hybrid system consisting of surface plasmonic resonance and alkali vapor are presented. Using a pump probe apparatus, Doppler free lineshape and all optical modulation is experimentally demonstrated.

•Jan 1, 2014•0 citations

Plasmonic Enhanced EIT and Velocity Selective Optical Pumping Measurements with Atomic Vapor

Eliran Talker, Pankaj Arora, Yefim Barash +2 more

In this work, we experimentally observe for the first time nanoscale plasmonic enhanced Electromagnetically Induced Transparency (EIT) and Velocity Selective Optical Pumping (VSOP) effects in miniaturized Integrated Quantum Plasmonic Device (IQPD) for D 2 transitions in rubidium (Rb). Our device consists of a vapor cell integrated on top of a prism coated with a thin layer of metal. This configuration is known to allow efficient excitation of Surface Plasmon Resonance (SPR). The evanescent field of the surface plasmon mode interacts with the atomic media in close vicinity to the metal. In spite of the limited interaction length between SPR and Rb atoms, the signature of EIT along with VSOP signals could be clearly observed in our miniaturized IQPD under proper conditions of pump and probe intensities. A gradual decrease in the contrast of the plasmonic enhanced EIT and VSOP signals was observed as the excitation was detuned from the SPR critical angle, due to reduction in electromagnetic field enhancement, leading to a reduced interaction of the evanescent field with the atomic vapor media. Following the demonstration of these effects, we also present a detailed model revealing the mechanisms and the origin of plasmonic enhanced EIT and VSOP effects in our system. The model, which is based on the Bloch equations, is in good agreement with the observed experimental results. The obtained results are regarded as an important step in the quest for the realization of nanoscale quantum plasmonic effects and devices.

ACS Photonics•Jan 25, 2018•26 citations

Observation of plasmonic enhanced EIT and velocity selective optical pumping measurements with atomic vapor

Eliran Talker, Pankaj Arora, Yefim Barash +2 more

We demonstrate theoretically and experimentally for the first time nanoscale plasmonic enhanced electromagnetically induced transparency and velocity selective optical pumping effects in miniaturized integrated quantum plasmonic device for D2 transitions in rubidium with V-type system.

Conference on Lasers and Electro-Optics•Jan 1, 2018•0 citations

Plasmon-atom coupling for suppression of spontaneous emission

Zhijie Deng, Chang‐Seok Shin, Philip Hemmer

Enhancement and suppression of spontaneous emission is vital to both quantum optics research and optoelectronics industry. Surface plasmon has been known to feature such characteristics. Waveguide-coupled-atom systems are studied for this goal. The enhancement is proportional to a field focusing factor and inverse to the group velocity along the waveguide. Comparison is made to the Purcell factor. A numerical example shows a promising structure with a grating-coupled plasmonic waveguide, projecting an emission enhancement by 51 times in spite of heat dissipation.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•May 23, 2005•0 citations

Simulation of double electromagnetically induced transparency in a four-level V-type system: A comparative study of probe and pump transmissions

Rohit Hazra, Md. Mabud Hossain

In this paper, we present the theoretical study of double electromagnetically induced transparency (EIT) in a four-level V-type system which is formed by two co-propagating laser fields and the Zeeman sublevels of hyperfine transitions of 87Rb D2 line. The density matrix equations for the four-level V-type system are derived from the Liouville’s equation of motion and numerically solved under steady state condition to get the EIT signals. We consider both the probe and pump transmission spectra for the observation of double EIT signals under both Doppler free and Doppler broadened conditions. In case of Doppler free medium, two EIT peaks are formed in the two Lorentzian shape dips present in the both Doppler free probe and pump transmission spectra. When the medium becomes Doppler broadened, the two EIT peaks are formed in the probe transmission spectrum having Doppler broadened background, but the pump transmission spectrum gives two EIT peaks in the Doppler free background. The effect of probe intensity variation on the two EIT peaks is studied in case of Doppler broadened probe transmission spectrum. It is found that the heights of the EIT peaks decrease as the probe intensity increases, and interestingly one EIT peak converts into EIA (electromagnetically induced absorption) dip at some strong probe intensity value. The depth of the EIA dip is significantly increased as the intensity of the probe field increases. We also present the effect of probe intensity variation on the EIT peaks in the pump transmission spectrum and found that the EIT peak heights are increased as the probe intensity increases.

AIP conference proceedings•Jan 1, 2019•3 citations

Tunable Fano resonance in atomic-plasmonic hybrid structure made of Rubidium atomic vapor-Au thin film

Mohammad Mosleh, Maliheh Ranjbaran, Seyedeh Mehri Hamidi

انجمن اپتیک و فوتونیک ایران•Mar 10, 2020•0 citations
In this work, we experimentally observe for the first time nanoscale plasmonic enhanced Electromagnetically Induced Transparency (EIT) and Velocity Selective Optical Pumping (VSOP) effects in miniaturized Integrated Quantum Plasmonic Device (IQPD) for D 2 transitions in rubidium (Rb). Our device consists of a vapor cell integrated on top of a prism coated with a thin layer of metal. This configuration is known to allow efficient excitation of Surface Plasmon Resonance (SPR). The evanescent field of the surface plasmon mode interacts with the atomic media in close vicinity to the metal. In spite of the limited interaction length between SPR and Rb atoms, the signature of EIT along with VSOP signals could be clearly observed in our miniaturized IQPD under proper conditions of pump and probe intensities. A gradual decrease in the contrast of the plasmonic enhanced EIT and VSOP signals was observed as the excitation was detuned from the SPR critical angle, due to reduction in electromagnetic field enhancement, leading to a reduced interaction of the evanescent field with the atomic vapor media. Following the demonstration of these effects, we also present a detailed model revealing the mechanisms and the origin of plasmonic enhanced EIT and VSOP effects in our system. The model, which is based on the Bloch equations, is in good agreement with the observed experimental results. The obtained results are regarded as an important step in the quest for the realization of nanoscale quantum plasmonic effects and devices.
Enhancement and suppression of spontaneous emission is vital to both quantum optics research and optoelectronics industry. Surface plasmon has been known to feature such characteristics. Waveguide-coupled-atom systems are studied for this goal. The enhancement is proportional to a field focusing factor and inverse to the group velocity along the waveguide. Comparison is made to the Purcell factor. A numerical example shows a promising structure with a grating-coupled plasmonic waveguide, projecting an emission enhancement by 51 times in spite of heat dissipation.
In this paper, we present the theoretical study of double electromagnetically induced transparency (EIT) in a four-level V-type system which is formed by two co-propagating laser fields and the Zeeman sublevels of hyperfine transitions of 87Rb D2 line. The density matrix equations for the four-level V-type system are derived from the Liouville’s equation of motion and numerically solved under steady state condition to get the EIT signals. We consider both the probe and pump transmission spectra for the observation of double EIT signals under both Doppler free and Doppler broadened conditions. In case of Doppler free medium, two EIT peaks are formed in the two Lorentzian shape dips present in the both Doppler free probe and pump transmission spectra. When the medium becomes Doppler broadened, the two EIT peaks are formed in the probe transmission spectrum having Doppler broadened background, but the pump transmission spectrum gives two EIT peaks in the Doppler free background. The effect of probe intensity variation on the two EIT peaks is studied in case of Doppler broadened probe transmission spectrum. It is found that the heights of the EIT peaks decrease as the probe intensity increases, and interestingly one EIT peak converts into EIA (electromagnetically induced absorption) dip at some strong probe intensity value. The depth of the EIA dip is significantly increased as the intensity of the probe field increases. We also present the effect of probe intensity variation on the EIT peaks in the pump transmission spectrum and found that the EIT peak heights are increased as the probe intensity increases.