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

Optical Communication Technology

Light information storage technology based on electromagnetically induced transparency

Zhaoyuan Song

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

Light information storage technology has important significance in all-optical communications in future and quantum information field, and is bottleneck of optical signal processing nowadays. Physical mechanism of electromagnetically induced transparency effects and light information storage theory based on this mechanism are clarified. The field research development is summarized, and the applications in all-optical communications in future and quantum communications field prospected..

Related papers

Quantum storage of optical signals and coherent manipulation of quantum states based on electromagnetically induced transparency

Hai Wang, Changde Xie, Kunchi Peng

Electromagnetically induced transparency (EIT) techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this paper, we briefly summarize the recent experimental studies conducted by our group on enhanced cross-phase modulation based on double EIT effects, the quantum interference of stored dual-channel spin-wave excitations and the coherent manipulation of the spin wave vector for the polarization of photons in a single tripod atomic system. The work presented here has potential application in the developing field of quantum information processing.

Chinese Science Bulletin•May 31, 2012•5 citations

Research on some new mechanisms of slow light and its applications

Zhang Shuo

The last decade is of great significance for the development of slow light technology.In order to study on the slow light technology deeply,several kinds of slowing light technologies,such as Electromagnetically Induced Transparency(EIT),Coherent Population Oscillation(CPO),Stimulated Brillouin Scattering(SBS) and photonic crystal waveguide,were contrasted and analyzed.Also some important theoretical and technical developments to improve performance of slow light in last decade were introduced,and then problems and shortcomings existing in slowing technology were discussed.Finally,this paper focuses on some novel technologies of slowing down light velocity and their primary applications.Moreover,it forecasts the future developing trends of slow light and its potential applications.Through research on slow light,results show that slow light will realize more and more significant application values in the field of optical fiber sensing and other fields.

Optics and Precision Engineering•Jan 1, 2009•4 citations

Storage and Manipulation of Photonic Information with Slow Light Effect

Yong‐Fan Chen

Light pulse can be greatly slowed down and even completely stopped based on the phenomenon of electromagnetically induced transparency (EIT). In this paper, we study the storage and manipulation of photonic information with slow light effect. The content includes the studies of photon switching, storage and manipulation of light, and light-storage cross-phase modulation (XPM). Our studies show that the photon switching system and light-storage technique may have important applications in quantum communications and computations.

•Mar 1, 2007•0 citations

Electromagnetically induced transparency metamaterials: theories, designs and applications

Lei Zhu, Liang Dong

Abstract Electromagnetically induced transparency (EIT) stems from a quantum system, where an opaque atomic medium appears the narrow transparent state within a wide absorption area. This phenomenon can be achieved by quantum interference of pumping light and detecting light at different energy levels of transitions. In the generation process of EIT effect, in addition to transparent state, the atomic medium is usually accompanied with a strong dispersion effect, which will bright about a significant reduction of light velocity, thus realizing many important applications, such as slow light propagations. Although the EIT effect has many important applications, its application scenarios are greatly limited due to the fact that EIT realization usually requires specific and complicated conditions, such as refrigeration temperature, high intensity laser, etc. Recently, the analogue of EIT effect in metamaterial has attracted increasing attentions due to its advantages such as controllable room temperature and large operating bandwidth. Metamaterial analogue of EIT effect has become a new research focus. In this article, we review current research progresses on EIT metamaterials. Firstly, we describe the theoretical models for analyzing EIT metamaterials, including the mechanical oscillator model and the equivalent circuit model. Then, we describe the simulations, designs and experiments of passive EIT metamaterials with fixed structures and active EIT metamaterials with tunable elements. Furthermore, the applications of EIT metamaterials in the areas of slow lights, sensings, absorptions and other fields are also reviewed. Finally, the possible directions and key issues of future EIT metamaterial researches are prospected.

Journal of Physics D Applied Physics•Mar 25, 2022•59 citations

Optical quantum memory based on electromagnetically induced transparency

Lijun Ma, Oliver Slattery, Xiao Hong Tang

Electromagnetically induced transparency (EIT) is a promising approach to implement quantum memory in quantum communication and quantum computing applications. In this paper, following a brief overview of the main approaches to quantum memory, we provide details of the physical principle and theory of quantum memory based specifically on EIT. We discuss the key technologies for implementing quantum memory based on EIT and review important milestones, from the first experimental demonstration to current applications in quantum information systems.

Journal of Optics•Feb 20, 2017•128 citations

High-storage efficiency EIT-based optical memory

Yi‐Hsin Chen, Meng‐Jung Lee, I-Chung Wang +4 more

A high-storage efficiency and long-live quantum memory for photons is an essential component for the information processing in long-distance quantum communication and optical quantum computation. We demonstrated a 78% storage efficiency (SE) of coherent light pulses with a cold atomic medium based on the effect of electromagnetically induced transparency (EIT). We also obtained a large fractional delay of 74 at 50% SE, which is the best record to date. The measured fidelity of the memory is better than 90%. The results suggest the EIT light-matter interface can be readily applied to single-photon quantum states. Our work greatly advances the technology of EIT-based quantum memory for the practical quantum information applications.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Feb 21, 2014•3 citations
Light information storage technology has important significance in all-optical communications in future and quantum information field, and is bottleneck of optical signal processing nowadays. Physical mechanism of electromagnetically induced transparency effects and light information storage theory based on this mechanism are clarified. The field research development is summarized, and the applications in all-optical communications in future and quantum communications field prospected..
Electromagnetically induced transparency (EIT) techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this paper, we briefly summarize the recent experimental studies conducted by our group on enhanced cross-phase modulation based on double EIT effects, the quantum interference of stored dual-channel spin-wave excitations and the coherent manipulation of the spin wave vector for the polarization of photons in a single tripod atomic system. The work presented here has potential application in the developing field of quantum information processing.
The last decade is of great significance for the development of slow light technology.In order to study on the slow light technology deeply,several kinds of slowing light technologies,such as Electromagnetically Induced Transparency(EIT),Coherent Population Oscillation(CPO),Stimulated Brillouin Scattering(SBS) and photonic crystal waveguide,were contrasted and analyzed.Also some important theoretical and technical developments to improve performance of slow light in last decade were introduced,and then problems and shortcomings existing in slowing technology were discussed.Finally,this paper focuses on some novel technologies of slowing down light velocity and their primary applications.Moreover,it forecasts the future developing trends of slow light and its potential applications.Through research on slow light,results show that slow light will realize more and more significant application values in the field of optical fiber sensing and other fields.
Light pulse can be greatly slowed down and even completely stopped based on the phenomenon of electromagnetically induced transparency (EIT). In this paper, we study the storage and manipulation of photonic information with slow light effect. The content includes the studies of photon switching, storage and manipulation of light, and light-storage cross-phase modulation (XPM). Our studies show that the photon switching system and light-storage technique may have important applications in quantum communications and computations.
Abstract Electromagnetically induced transparency (EIT) stems from a quantum system, where an opaque atomic medium appears the narrow transparent state within a wide absorption area. This phenomenon can be achieved by quantum interference of pumping light and detecting light at different energy levels of transitions. In the generation process of EIT effect, in addition to transparent state, the atomic medium is usually accompanied with a strong dispersion effect, which will bright about a significant reduction of light velocity, thus realizing many important applications, such as slow light propagations. Although the EIT effect has many important applications, its application scenarios are greatly limited due to the fact that EIT realization usually requires specific and complicated conditions, such as refrigeration temperature, high intensity laser, etc. Recently, the analogue of EIT effect in metamaterial has attracted increasing attentions due to its advantages such as controllable room temperature and large operating bandwidth. Metamaterial analogue of EIT effect has become a new research focus. In this article, we review current research progresses on EIT metamaterials. Firstly, we describe the theoretical models for analyzing EIT metamaterials, including the mechanical oscillator model and the equivalent circuit model. Then, we describe the simulations, designs and experiments of passive EIT metamaterials with fixed structures and active EIT metamaterials with tunable elements. Furthermore, the applications of EIT metamaterials in the areas of slow lights, sensings, absorptions and other fields are also reviewed. Finally, the possible directions and key issues of future EIT metamaterial researches are prospected.
Electromagnetically induced transparency (EIT) is a promising approach to implement quantum memory in quantum communication and quantum computing applications. In this paper, following a brief overview of the main approaches to quantum memory, we provide details of the physical principle and theory of quantum memory based specifically on EIT. We discuss the key technologies for implementing quantum memory based on EIT and review important milestones, from the first experimental demonstration to current applications in quantum information systems.
A high-storage efficiency and long-live quantum memory for photons is an essential component for the information processing in long-distance quantum communication and optical quantum computation. We demonstrated a 78% storage efficiency (SE) of coherent light pulses with a cold atomic medium based on the effect of electromagnetically induced transparency (EIT). We also obtained a large fractional delay of 74 at 50% SE, which is the best record to date. The measured fidelity of the memory is better than 90%. The results suggest the EIT light-matter interface can be readily applied to single-photon quantum states. Our work greatly advances the technology of EIT-based quantum memory for the practical quantum information applications.