Laterally coupled circular quantum dots under applied electric field

The optical response of a system of two laterally coupled quantum dots with circular cross-sectional shape is investigated within the effective mass approximation, taking into account the effects of the change in the geometrical configuration, the application of an external static electric field, an...

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Autores:
Tipo de recurso:
Fecha de publicación:
2016
Institución:
Universidad de Medellín
Repositorio:
Repositorio UDEM
Idioma:
eng
OAI Identifier:
oai:repository.udem.edu.co:11407/2279
Acceso en línea:
http://hdl.handle.net/11407/2279
Palabra clave:
Electric fields
Electromagnetic wave absorption
Electronic states
Light absorption
Nanocrystals
Optical properties
Point defects
Quantum theory
Refractive index
Semiconductor quantum dots
Cross-sectional shape
Dielectric susceptibility
Effective mass approximation
Electric field intensities
Geometrical configurations
Optical response
Refractive index coefficient
Static electric fields
Electric field effects
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restrictedAccess
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http://purl.org/coar/access_right/c_16ec
id REPOUDEM2_ceb4e84e7c07b8d91263afe86e7e9497
oai_identifier_str oai:repository.udem.edu.co:11407/2279
network_acronym_str REPOUDEM2
network_name_str Repositorio UDEM
repository_id_str
spelling 2016-06-23T14:01:37Z2016-06-23T14:01:37Z201613869477http://hdl.handle.net/11407/227910.1016/j.physe.2015.10.024The optical response of a system of two laterally coupled quantum dots with circular cross-sectional shape is investigated within the effective mass approximation, taking into account the effects of the change in the geometrical configuration, the application of an external static electric field, and the presence of a donor impurity center. The first-order dielectric susceptibility is calculated in order to derive the corresponding light absorption and relative refractive index coefficients. The possibility of tuning these optical properties by means of changes in the quantum dot symmetry and the electric field intensity is particularly discussed.engElsevierhttp://www.sciencedirect.com/science/article/pii/S1386947715302538Physica E: Low-dimensional Systems and Nanostructures Volume 77, March 2016, Pages 34–43ScopusLaterally coupled circular quantum dots under applied electric fieldArticleinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/restrictedAccesshttp://purl.org/coar/access_right/c_16ecGrupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, ColombiaDepartamento de Ciencias Básicas, Universidad de Medellín, Universidad de Antioquia UdeA, Medellín, ColombiaCentro de Investigación en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, MexicoDuque C.M.Correa J.D.Morales A.L.Mora-Ramos M.E.Duque C.A.Electric fieldsElectromagnetic wave absorptionElectronic statesLight absorptionNanocrystalsOptical propertiesPoint defectsQuantum theoryRefractive indexSemiconductor quantum dotsCross-sectional shapeDielectric susceptibilityEffective mass approximationElectric field intensitiesGeometrical configurationsOptical responseRefractive index coefficientStatic electric fieldsElectric field effects11407/2279oai:repository.udem.edu.co:11407/22792020-05-27 17:31:42.556Repositorio Institucional Universidad de Medellinrepositorio@udem.edu.co
dc.title.spa.fl_str_mv Laterally coupled circular quantum dots under applied electric field
title Laterally coupled circular quantum dots under applied electric field
spellingShingle Laterally coupled circular quantum dots under applied electric field
Electric fields
Electromagnetic wave absorption
Electronic states
Light absorption
Nanocrystals
Optical properties
Point defects
Quantum theory
Refractive index
Semiconductor quantum dots
Cross-sectional shape
Dielectric susceptibility
Effective mass approximation
Electric field intensities
Geometrical configurations
Optical response
Refractive index coefficient
Static electric fields
Electric field effects
title_short Laterally coupled circular quantum dots under applied electric field
title_full Laterally coupled circular quantum dots under applied electric field
title_fullStr Laterally coupled circular quantum dots under applied electric field
title_full_unstemmed Laterally coupled circular quantum dots under applied electric field
title_sort Laterally coupled circular quantum dots under applied electric field
dc.contributor.affiliation.spa.fl_str_mv Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
Departamento de Ciencias Básicas, Universidad de Medellín, Universidad de Antioquia UdeA, Medellín, Colombia
Centro de Investigación en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, Mexico
dc.subject.keyword.eng.fl_str_mv Electric fields
Electromagnetic wave absorption
Electronic states
Light absorption
Nanocrystals
Optical properties
Point defects
Quantum theory
Refractive index
Semiconductor quantum dots
Cross-sectional shape
Dielectric susceptibility
Effective mass approximation
Electric field intensities
Geometrical configurations
Optical response
Refractive index coefficient
Static electric fields
Electric field effects
topic Electric fields
Electromagnetic wave absorption
Electronic states
Light absorption
Nanocrystals
Optical properties
Point defects
Quantum theory
Refractive index
Semiconductor quantum dots
Cross-sectional shape
Dielectric susceptibility
Effective mass approximation
Electric field intensities
Geometrical configurations
Optical response
Refractive index coefficient
Static electric fields
Electric field effects
description The optical response of a system of two laterally coupled quantum dots with circular cross-sectional shape is investigated within the effective mass approximation, taking into account the effects of the change in the geometrical configuration, the application of an external static electric field, and the presence of a donor impurity center. The first-order dielectric susceptibility is calculated in order to derive the corresponding light absorption and relative refractive index coefficients. The possibility of tuning these optical properties by means of changes in the quantum dot symmetry and the electric field intensity is particularly discussed.
publishDate 2016
dc.date.accessioned.none.fl_str_mv 2016-06-23T14:01:37Z
dc.date.available.none.fl_str_mv 2016-06-23T14:01:37Z
dc.date.created.none.fl_str_mv 2016
dc.type.eng.fl_str_mv Article
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.identifier.issn.none.fl_str_mv 13869477
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/11407/2279
dc.identifier.doi.none.fl_str_mv 10.1016/j.physe.2015.10.024
identifier_str_mv 13869477
10.1016/j.physe.2015.10.024
url http://hdl.handle.net/11407/2279
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.isversionof.spa.fl_str_mv http://www.sciencedirect.com/science/article/pii/S1386947715302538
dc.relation.ispartofen.eng.fl_str_mv Physica E: Low-dimensional Systems and Nanostructures Volume 77, March 2016, Pages 34–43
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.accessrights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://purl.org/coar/access_right/c_16ec
dc.publisher.spa.fl_str_mv Elsevier
dc.source.spa.fl_str_mv Scopus
institution Universidad de Medellín
repository.name.fl_str_mv Repositorio Institucional Universidad de Medellin
repository.mail.fl_str_mv repositorio@udem.edu.co
_version_ 1814159166940381184

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