A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms

Dicke superradiance, a single-mode burst of radiation emitted by an ensemble of two-level atoms, has garnered tremendous attention within the physics community. Its extension to multi-level systems introduces additional degrees of freedom, such as mode-selective control over well-known Dicke superra...

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Main Authors: Gombojav O. Ariunbold, Tuguldur Begzjav
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Photonics
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Online Access:https://www.mdpi.com/2304-6732/12/7/674
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author Gombojav O. Ariunbold
Tuguldur Begzjav
author_facet Gombojav O. Ariunbold
Tuguldur Begzjav
author_sort Gombojav O. Ariunbold
collection DOAJ
description Dicke superradiance, a single-mode burst of radiation emitted by an ensemble of two-level atoms, has garnered tremendous attention within the physics community. Its extension to multi-level systems introduces additional degrees of freedom, such as mode-selective control over well-known Dicke superradiant behaviors. However, previous work on the extension to two-mode superradiance in three-level atoms has been largely overlooked for over five decades. In this study, we revisit the two-mode superradiance model for a Λ-type three-level system, where two modes couple to a common excited state and two separate lower levels, offering new insights. For the first time, we obtain exact numerical solutions of the two-mode rate equations for this model. We analyze the temporal evolution of two-mode intensities, superradiance time delays, and quantum noise in the time domain as the number of atoms varies. We believe this work will enable external mode-selective control over superradiance processes—a capability unattainable in the single-mode case.
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spelling doaj-art-52902aa3f67944f5a2e0dcbda667335f2025-08-20T03:56:49ZengMDPI AGPhotonics2304-67322025-07-0112767410.3390/photonics12070674A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level AtomsGombojav O. Ariunbold0Tuguldur Begzjav1Department of Physics and Astronomy, Mississippi State University, Starkville, MS 39762, USADepartment of Physics, National University of Mongolia, Ulaanbaatar 14200, MongoliaDicke superradiance, a single-mode burst of radiation emitted by an ensemble of two-level atoms, has garnered tremendous attention within the physics community. Its extension to multi-level systems introduces additional degrees of freedom, such as mode-selective control over well-known Dicke superradiant behaviors. However, previous work on the extension to two-mode superradiance in three-level atoms has been largely overlooked for over five decades. In this study, we revisit the two-mode superradiance model for a Λ-type three-level system, where two modes couple to a common excited state and two separate lower levels, offering new insights. For the first time, we obtain exact numerical solutions of the two-mode rate equations for this model. We analyze the temporal evolution of two-mode intensities, superradiance time delays, and quantum noise in the time domain as the number of atoms varies. We believe this work will enable external mode-selective control over superradiance processes—a capability unattainable in the single-mode case.https://www.mdpi.com/2304-6732/12/7/674Dicke superradiancetwo-mode superradianceΛ three-level atomLambda configuration
spellingShingle Gombojav O. Ariunbold
Tuguldur Begzjav
A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
Photonics
Dicke superradiance
two-mode superradiance
Λ three-level atom
Lambda configuration
title A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
title_full A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
title_fullStr A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
title_full_unstemmed A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
title_short A Mode-Selective Control in Two-Mode Superradiance from Lambda Three-Level Atoms
title_sort mode selective control in two mode superradiance from lambda three level atoms
topic Dicke superradiance
two-mode superradiance
Λ three-level atom
Lambda configuration
url https://www.mdpi.com/2304-6732/12/7/674
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