$Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium$
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Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium

In this paper, we present the study on negative refractive index in an inhomogeneously broadened four-level inverted-Y atomic medium based on electromagnetically induced transparency (EIT). The expressions of the relative permittivity and the relative permeability are derived under Doppler broadenin...

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Autores principales:	Bang Nguyen, Nguyen Phu, Vu Sau, Nguyen Cong, Doai Le Van
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Negative refractive index electromagnetically induced transparency doppler broadening Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/607ba88b27a04d51948ec12986687cc6
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spelling	oai:doaj.org-article:607ba88b27a04d51948ec12986687cc62021-11-03T23:00:10ZNegative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium1943-065510.1109/JPHOT.2021.3119985https://doaj.org/article/607ba88b27a04d51948ec12986687cc62021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9573352/https://doaj.org/toc/1943-0655In this paper, we present the study on negative refractive index in an inhomogeneously broadened four-level inverted-Y atomic medium based on electromagnetically induced transparency (EIT). The expressions of the relative permittivity and the relative permeability are derived under Doppler broadening. For this four-level system, we have found two frequency bands of negative refractive index in an optical region corresponding to two EIT windows. The influences of coupling and signal laser fields as well as temperature on frequency bands of negative refractive index are investigated. Our research can be convenient for experimental implementation with real atomic media under different temperatures.Bang NguyenNguyen PhuVu SauNguyen CongDoai Le VanIEEEarticleNegative refractive indexelectromagnetically induced transparencydoppler broadeningApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 13, Iss 6, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Negative refractive index electromagnetically induced transparency doppler broadening Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Negative refractive index electromagnetically induced transparency doppler broadening Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Bang Nguyen Nguyen Phu Vu Sau Nguyen Cong Doai Le Van Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
description	In this paper, we present the study on negative refractive index in an inhomogeneously broadened four-level inverted-Y atomic medium based on electromagnetically induced transparency (EIT). The expressions of the relative permittivity and the relative permeability are derived under Doppler broadening. For this four-level system, we have found two frequency bands of negative refractive index in an optical region corresponding to two EIT windows. The influences of coupling and signal laser fields as well as temperature on frequency bands of negative refractive index are investigated. Our research can be convenient for experimental implementation with real atomic media under different temperatures.
format	article
author	Bang Nguyen Nguyen Phu Vu Sau Nguyen Cong Doai Le Van
author_facet	Bang Nguyen Nguyen Phu Vu Sau Nguyen Cong Doai Le Van
author_sort	Bang Nguyen
title	Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
title_short	Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
title_full	Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
title_fullStr	Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
title_full_unstemmed	Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium
title_sort	negative refractive index in an inhomogeneously broadened four-level inverted-y atomic medium
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/607ba88b27a04d51948ec12986687cc6
work_keys_str_mv	AT bangnguyen negativerefractiveindexinaninhomogeneouslybroadenedfourlevelinvertedyatomicmedium AT nguyenphu negativerefractiveindexinaninhomogeneouslybroadenedfourlevelinvertedyatomicmedium AT vusau negativerefractiveindexinaninhomogeneouslybroadenedfourlevelinvertedyatomicmedium AT nguyencong negativerefractiveindexinaninhomogeneouslybroadenedfourlevelinvertedyatomicmedium AT doailevan negativerefractiveindexinaninhomogeneouslybroadenedfourlevelinvertedyatomicmedium
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Negative Refractive Index in an Inhomogeneously Broadened Four-Level Inverted-Y Atomic Medium

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