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Láser aislador topológico: Teoría
Gal Harari1, Miguel A Bandres1, Yaakov Lumer2
1Physics Department and Solid State Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Science (New York, N.Y.)
|February 9, 2018
Resumen
Presentamos el láser aislante topológico, un nuevo dispositivo que utiliza estados de borde topológico para una propagación de luz robusta y unidireccional. Este láser ofrece una alta eficiencia y funcionamiento en un solo modo, incluso en sistemas desordenados.
Área de la Ciencia:
- Física de la materia condensada
- La óptica cuántica
- Ciencias de los materiales
Sus antecedentes:
- Los aislantes topológicos cuentan con estados de borde robustos ideales para la computación cuántica y la espintrónica.
- Las tecnologías láser actuales se enfrentan a limitaciones con el desorden y el logro de una operación de modo único a alta ganancia.
Objetivo del estudio:
- Proponer y conceptualizar el láser aislador topológico.
- Explorar el transporte topológicamente protegido en sistemas con ganancia.
- Para permitir un láser de modo único eficiente y resistente a los defectos.
Principales métodos:
- Propuesta teórica que aprovecha las propiedades topológicas de la materia.
- Análisis del transporte topológicamente protegido sin campos magnéticos.
- Investigación de la eficiencia del láser y la robustez del desorden.
Principales resultados:
- Demostración de un concepto de láser con modos de láser protegidos topológicamente.
- Alcanza una alta eficiencia y robustez contra defectos y desorden.
- Potencial para el láser de modo único incluso con valores de ganancia muy altos.
Conclusiones:
- El láser aislador topológico ofrece un nuevo paradigma para el diseño láser, fusionando la física topológica y la fotónica.
- Esta tecnología promete láseres altamente eficientes y tolerantes a defectos para aplicaciones avanzadas.
- Abre nuevas vías para la investigación en física topológica y matrices láser de semiconductores.
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