Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx
The effect of aluminum concentration on the second harmonic generation (SHG) in a cylindrical quantum dot (CQD) is studied theoretically, using the density matrix formalism and a perturbative procedure. The energy levels and wave functions of an electron in the CQD were obtained by solving the ti...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2022
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13324 |
| _version_ | 1801706351137652736 |
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| author | Montes Macea, Alexander Jose Cano, L.E. Portacio , Alfonso |
| author_facet | Montes Macea, Alexander Jose Cano, L.E. Portacio , Alfonso |
| author_sort | Montes Macea, Alexander Jose |
| collection | OJS |
| description |
The effect of aluminum concentration on the second harmonic generation (SHG) in a cylindrical quantum dot (CQD) is studied theoretically, using the density matrix formalism and a perturbative procedure. The energy levels and wave functions of an electron in the CQD were obtained by solving the time-independent Schrödinger equation in the framework of the effective mass approximation. Numerical calculations are performed for a CQD of GaAs/Al1−xGaxAs. It was found that the increase in the aluminum concentration produces a decrease in the intensity of the SHG and a blue shift in the resonant peaks of the optical res- ponse of the object of study.
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| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-13324 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2022 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-133242023-06-26T20:42:54Z Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx Efecto de la concentración de Aluminio sobre la generación del segundo armónico en un punto cuántico de AsGa/AsGa1−xAlx Montes Macea, Alexander Jose Cano, L.E. Portacio , Alfonso Punto cuántico cilíndrico, generación de segundo armónico. Cylindrical quantum dot, Second harmonic generation. The effect of aluminum concentration on the second harmonic generation (SHG) in a cylindrical quantum dot (CQD) is studied theoretically, using the density matrix formalism and a perturbative procedure. The energy levels and wave functions of an electron in the CQD were obtained by solving the time-independent Schrödinger equation in the framework of the effective mass approximation. Numerical calculations are performed for a CQD of GaAs/Al1−xGaxAs. It was found that the increase in the aluminum concentration produces a decrease in the intensity of the SHG and a blue shift in the resonant peaks of the optical res- ponse of the object of study. Se estudia teóricamente el efecto de la concentración de aluminio sobre la generación del segundo armónico (SHG) en un punto cuántico cilíndrico (CQD), usando el formalismo de la matriz densidad y un procedimiento perturbativo. Los niveles de energía y las funciones de onda de un electrón en el CQD se obtuvieron solucionando la ecuación de Schrödinger independiente del tiempo en el marco de la aproximación de masa efectiva. Los cálculos numéricos se efectúan para un CQD de AsGa/AsGa1−xAlx. Se encontró que el aumento de la concentración de alumnio produce una disminución de la intensidad de la SHG y un corrimiento al azul en los picos resonantes de la respuesta óptica objeto de estudio. Universidad Pedagógica y Tecnológica de Colombia 2022-01-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13324 10.19053/01217488.v13.n1.2022.13324 Ciencia En Desarrollo; Vol. 13 No. 1 (2022): Vol. 13 Núm. 1 (2022): Vol 13, Núm.1 (2022): Enero-Junio; 57-64 Ciencia en Desarrollo; Vol. 13 Núm. 1 (2022): Vol. 13 Núm. 1 (2022): Vol 13, Núm.1 (2022): Enero-Junio; 57-64 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13324/12521 |
| spellingShingle | Punto cuántico cilíndrico, generación de segundo armónico. Cylindrical quantum dot, Second harmonic generation. Montes Macea, Alexander Jose Cano, L.E. Portacio , Alfonso Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title | Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title_alt | Efecto de la concentración de Aluminio sobre la generación del segundo armónico en un punto cuántico de AsGa/AsGa1−xAlx |
| title_full | Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title_fullStr | Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title_full_unstemmed | Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title_short | Effect of the aluminum concentration on the second harmonic generation in a quantum dot of AsGa/AsGa1−xAlx |
| title_sort | effect of the aluminum concentration on the second harmonic generation in a quantum dot of asga asga1 xalx |
| topic | Punto cuántico cilíndrico, generación de segundo armónico. Cylindrical quantum dot, Second harmonic generation. |
| topic_facet | Punto cuántico cilíndrico, generación de segundo armónico. Cylindrical quantum dot, Second harmonic generation. |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13324 |
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