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Nonlinear optical rectification in vertically coupled InAs/GaAs quantum dots under electromagnetic fields, pressure and temperature effects

Identifieur interne : 000829 ( Main/Repository ); précédent : 000828; suivant : 000830

Nonlinear optical rectification in vertically coupled InAs/GaAs quantum dots under electromagnetic fields, pressure and temperature effects

Auteurs : RBID : Pascal:13-0319282

Descripteurs français

Pascal (Inist)
- Optique non linéaire, Rectification optique, Champ électromagnétique, Effet pression, Pression hydrostatique, Méthode analytique, Matrice densité, Masse effective, Méthode différence finie, Effet température, Déplacement raie, Arséniure d'indium, Arséniure de gallium, Point quantique, Nitrure de calcium, InAs, GaAs.

English descriptors

KwdEn :
- Analytical method, Calcium nitride, Density matrix, Effective mass, Electromagnetic fields, Finite difference method, Gallium arsenides, Hydrostatic pressure, Indium arsenides, Nonlinear optics, Optical rectification, Pressure effects, Quantum dots, Spectral line shift, Temperature effects.

Abstract

In this paper we explore the effects of the structural dimensions, applied electromagnetic fields, hydrostatic pressure and temperature on the nonlinear optical rectification (NOR) in Vertically Coupled InAs/GaAs Quantum Dots (VCQDs). The analytical expression of the NOR is analyzed by using the density matrix formalism, the effective mass and the Finite Difference Method (FDM). Obtained results show that the NOR obtained with this coupled system is not a monotonic function of the barrier width, electromagnetic fields, pressure and temperature. Also, calculated results reveal that the resonant peaks of the NOR can be blue-shifted or red-shifted energies depending on the energy of the lowest confined states in the VCQDs structure. In addition, this condition can be controlled by changes in the structural dimensions and the external proofs mentioned above.

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<author><name sortKey="Choubani, M" uniqKey="Choubani M">M. Choubani</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Micro-Optoélecrronique et Nanostructures, Département de Physique, Faculté des Sciences de Monastir 5019, Avenue de l'environnement, Université de Monastir</s1>
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<country>Tunisie</country>
<wicri:noRegion>Laboratoire de Micro-Optoélecrronique et Nanostructures, Département de Physique, Faculté des Sciences de Monastir 5019, Avenue de l'environnement, Université de Monastir</wicri:noRegion>
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<author><name sortKey="Ben Mahrsia, R" uniqKey="Ben Mahrsia R">R. Ben Mahrsia</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Micro-Optoélecrronique et Nanostructures, Département de Physique, Faculté des Sciences de Monastir 5019, Avenue de l'environnement, Université de Monastir</s1>
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<author><name sortKey="Bouzaiene, L" uniqKey="Bouzaiene L">L. Bouzaiene</name>
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<author><name sortKey="Maaref, H" uniqKey="Maaref H">H. Maaref</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Micro-Optoélecrronique et Nanostructures, Département de Physique, Faculté des Sciences de Monastir 5019, Avenue de l'environnement, Université de Monastir</s1>
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<term>Calcium nitride</term>
<term>Density matrix</term>
<term>Effective mass</term>
<term>Electromagnetic fields</term>
<term>Finite difference method</term>
<term>Gallium arsenides</term>
<term>Hydrostatic pressure</term>
<term>Indium arsenides</term>
<term>Nonlinear optics</term>
<term>Optical rectification</term>
<term>Pressure effects</term>
<term>Quantum dots</term>
<term>Spectral line shift</term>
<term>Temperature effects</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Optique non linéaire</term>
<term>Rectification optique</term>
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<term>Pression hydrostatique</term>
<term>Méthode analytique</term>
<term>Matrice densité</term>
<term>Masse effective</term>
<term>Méthode différence finie</term>
<term>Effet température</term>
<term>Déplacement raie</term>
<term>Arséniure d'indium</term>
<term>Arséniure de gallium</term>
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<term>Nitrure de calcium</term>
<term>InAs</term>
<term>GaAs</term>
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<front><div type="abstract" xml:lang="en">In this paper we explore the effects of the structural dimensions, applied electromagnetic fields, hydrostatic pressure and temperature on the nonlinear optical rectification (NOR) in Vertically Coupled InAs/GaAs Quantum Dots (VCQDs). The analytical expression of the NOR is analyzed by using the density matrix formalism, the effective mass and the Finite Difference Method (FDM). Obtained results show that the NOR obtained with this coupled system is not a monotonic function of the barrier width, electromagnetic fields, pressure and temperature. Also, calculated results reveal that the resonant peaks of the NOR can be blue-shifted or red-shifted energies depending on the energy of the lowest confined states in the VCQDs structure. In addition, this condition can be controlled by changes in the structural dimensions and the external proofs mentioned above.</div>
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<fA08 i1="01" i2="1" l="ENG"><s1>Nonlinear optical rectification in vertically coupled InAs/GaAs quantum dots under electromagnetic fields, pressure and temperature effects</s1>
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<fA11 i1="01" i2="1"><s1>CHOUBANI (M.)</s1>
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<fC01 i1="01" l="ENG"><s0>In this paper we explore the effects of the structural dimensions, applied electromagnetic fields, hydrostatic pressure and temperature on the nonlinear optical rectification (NOR) in Vertically Coupled InAs/GaAs Quantum Dots (VCQDs). The analytical expression of the NOR is analyzed by using the density matrix formalism, the effective mass and the Finite Difference Method (FDM). Obtained results show that the NOR obtained with this coupled system is not a monotonic function of the barrier width, electromagnetic fields, pressure and temperature. Also, calculated results reveal that the resonant peaks of the NOR can be blue-shifted or red-shifted energies depending on the energy of the lowest confined states in the VCQDs structure. In addition, this condition can be controlled by changes in the structural dimensions and the external proofs mentioned above.</s0>
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Nonlinear optical rectification in vertically coupled InAs/GaAs quantum dots under electromagnetic fields, pressure and temperature effects

Nonlinear optical rectification in vertically coupled InAs/GaAs quantum dots under electromagnetic fields, pressure and temperature effects

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English descriptors

Abstract

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