Repositorio UFRO · Omeka S

Optical Gain of a Spherical InAs Quantum Dot under the Effects of the Intense Laser and Magnetic Fields

Primer Autor	Perez, Laura M.
Co-autores	Aghoutane, Noreddine Laroze, David Diaz, Pablo Rivas, Miguel El-Yadri, Mohamed Feddi, El Mustapha
Título	Optical Gain of a Spherical InAs Quantum Dot under the Effects of the Intense Laser and Magnetic Fields
Editorial	MDPI
Revista	CRYSTALS
Lenguaje	en
Resumen	In quantum dots, where confinement is strong, interactions between charge carriers play an essential role in the performance of semiconductor materials for optical gain. Therefore, understanding this phenomenon is critical for achieving new devices with enhanced features. In this context, the current study examines the optical properties of an exciton confined in a spherical InAs quantum dot under the influence of magnetic and intense laser fields. We investigate the oscillator strength, exciton lifetime, and optical gain, considering the effects of both external fields. We also pay particular attention to the influence of quantum dot size on the results. Our calculations show that the two external fields have opposite effects on our findings. Specifically, the applied magnetic field increases the oscillator strength while the intense laser reduces it. In addition, the optical gain peaks are redshifted under the application of the intense laser, whereas the magnetic field causes a blueshift of the peak threshold. We also find that both external perturbations significantly influence the exciton lifetime. Our study considers the outcomes of both the exciton's ground (1s) and first excited (1p) states. The theoretical results obtained in this study have promising implications for optoelectronic devices in the similar to 3-4 mu m wavelength range only through the control of quantum dot sizes and external perturbations.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.3390/cryst13050851
Formato Recurso	PDF
Palabras Claves	optical gain exciton lifetime oscillator strength quantum dot
Ubicación del archivo	http://dx.doi.org/10.3390/cryst13050851
Categoría OCDE	Cristalografía Ciencia de los Materiales
Materias	ganancia óptica excitón toda la vida fuerza del oscilador punto cuántico
Versión del recurso (Recomendado-único)	versión publicada
Tipo de ruta	dorada verde
Access Rights	acceso abierto
Derechos de acceso	acceso abierto
Id de Web of Science	WOS:000997491100001
Identificador del recurso (Mandatado-único)	artículo original
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Categoría WOS	Cristalografía Ciencia de los Materiales
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID SA77210040 ANID-BASAL AFB220001 ANID-FONDECYT 1231020 ANID BASAL AFB220001 ANID FONDECYT 1231020