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

Controlled light storage in a double lambda system

Andrzej Raczyński, Jarosław Zaremba, Instytut Fizyki Uniwersytet Miko̷laja Kopernika

Published Jan 24, 2002• 23 citations
OpenAlex

Abstract

The possibility is predicted that after light storing in a medium of four-level atoms it is possible to release a new pulse of a different frequency, the process being steered by another driving beam. It is also possible to store one pulse and to release two different ones, with their time separation and heights being controlled.

Related papers

Coherent processing of a light pulse stored in a medium of four-level atoms

Raczynski, A, Zaremba, J, Zielinska-Kaniasty, S

It is demonstrated that the properties of light stored in a four-level atomic system can be modified by an additional control interaction present during the storage stage. By choosing the pulse area of this interaction one can in particular continuously switch between two channels into which light is released.

•Oct 23, 2002•7 citations

Controlled release of stored optical pulses in an atomic ensemble into two separate photonic channels

Bo Wang, Shujing Li, Haibin Wu +3 more

We report an experiment in which optical pulses stored in an atomic system can be controllably released into two different photonic channels. By controllably turning on the retrieve control pulses at either 795 or $780\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ to read the stored optical pulses in a four-level double $\ensuremath{\Lambda}$-type atomic medium, we can obtain the released probe pulse at 795 or $780\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$, respectively. These readout pulses can be further separated spatially and directed into different optical propagation channels through a grating. Such controlled release of stored optical pulses may extend the capabilities of the quantum information storage technique, and can have applications in multichannel all-optical switching, all-optical routing, quantum information processing, and image storage systems.

Physical Review A•Oct 4, 2005•32 citations

Simultaneous Slow Light Propagation of Two Pulse Beams Based on Resonant Atomic System of Double-lambda

姜其畅 JIANG Qi-chang, 刘超 Liu Chao, 刘晋宏 LIU Jin-hong +1 more

Acta Sinica Quantum Optica•Jan 1, 2015•0 citations

Armazenamento e distribuição de pulsos ópticos com conversão em múltiplos comprimentos de onda

Wellington C. R. Nascimento

Based in the effect of the Electromagnetically Induced Transparency (EIT) and the storage of light in atomic medium, we propose multi-wavelength optical pulse conversion. Starting from coupled Maxwell-Bloch equations, we simulate the propagation of the optical pulses resonant with electric dipole transition in the atomic system. Considering a three level Λ-type atomic system, we investigate the effect of the storage of light under EIT and we approach the wavelength conversion process using a double-Λ system. Generalizing the process for a triple-Λ system, we show the possibility of multi-wavelength conversion of a field previously stored in the atomic system. In this last case, we simulate the propagation of the six fields interacting resonantly, where three of the fields are called control fields and others are probe fields. First only two fields are incident in the medium, a probe Field and a control field, thus we establish the EIT regime. When we turn off the control field, the probe field is stored in the medium as a collective excitation between the lower energy levels which corresponds to a dark state of the atomic system. Depending on the choice of the control field which is turned on, we show that it is possible to store a field for a given a time and later to release it in differents wavelengths.

•Nov 25, 2005•0 citations

Coherent processing of a light pulse stored in a medium of four-level atoms

A. Raczyński, J. Zaremba, S. Zielińska-Kaniasty

arXiv:quant-ph/0210159•Optics Communications•Mar 1, 2003•9 citations

Frequency Conversion Based on Light Storage in Pr:YSO Crystal

Dun-Mao Du

The authors experimentally demonstrated the optical information transfer between two frequencies channels based on electromagnetically induced transparency(EIT) in a four level double lambda system in Pr∶YSO crystal.Under the conditions of EIT,a weak probe pulse is slowed during the propagation in the crystal.A group velocity of 86 m/s is observed experimentally.By adiabatically switching off the control field,most of the probe pulse is stored in the sample.By switching on two control fields(with distinct frequencies and direction) in the release process,the stored optical information is distributed into two spatially-separated channels from the original slow light pulse with a single channel.By adjusting the two control fields in the release process,the information of slowed light pulse can be converted between the frequencies channels.

Journal of Jilin University(Science Edition)•Jan 1, 2012•0 citations
We report an experiment in which optical pulses stored in an atomic system can be controllably released into two different photonic channels. By controllably turning on the retrieve control pulses at either 795 or 780nm780\phantom{\rule{0.3em}{0ex}}\mathrm{nm}780nm to read the stored optical pulses in a four-level double $\ensuremath{\Lambda}$-type atomic medium, we can obtain the released probe pulse at 795 or 780nm780\phantom{\rule{0.3em}{0ex}}\mathrm{nm}780nm, respectively. These readout pulses can be further separated spatially and directed into different optical propagation channels through a grating. Such controlled release of stored optical pulses may extend the capabilities of the quantum information storage technique, and can have applications in multichannel all-optical switching, all-optical routing, quantum information processing, and image storage systems.
Based in the effect of the Electromagnetically Induced Transparency (EIT) and the storage of light in atomic medium, we propose multi-wavelength optical pulse conversion. Starting from coupled Maxwell-Bloch equations, we simulate the propagation of the optical pulses resonant with electric dipole transition in the atomic system. Considering a three level Λ-type atomic system, we investigate the effect of the storage of light under EIT and we approach the wavelength conversion process using a double-Λ system. Generalizing the process for a triple-Λ system, we show the possibility of multi-wavelength conversion of a field previously stored in the atomic system. In this last case, we simulate the propagation of the six fields interacting resonantly, where three of the fields are called control fields and others are probe fields. First only two fields are incident in the medium, a probe Field and a control field, thus we establish the EIT regime. When we turn off the control field, the probe field is stored in the medium as a collective excitation between the lower energy levels which corresponds to a dark state of the atomic system. Depending on the choice of the control field which is turned on, we show that it is possible to store a field for a given a time and later to release it in differents wavelengths.
The authors experimentally demonstrated the optical information transfer between two frequencies channels based on electromagnetically induced transparency(EIT) in a four level double lambda system in Pr∶YSO crystal.Under the conditions of EIT,a weak probe pulse is slowed during the propagation in the crystal.A group velocity of 86 m/s is observed experimentally.By adiabatically switching off the control field,most of the probe pulse is stored in the sample.By switching on two control fields(with distinct frequencies and direction) in the release process,the stored optical information is distributed into two spatially-separated channels from the original slow light pulse with a single channel.By adjusting the two control fields in the release process,the information of slowed light pulse can be converted between the frequencies channels.