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Control de la luz espacio-temporal con metasuperficies activas
Amr M Shaltout1, Vladimir M Shalaev2, Mark L Brongersma3
1Geballe Lab for Advanced Materials, Stanford University, Stanford, CA 94305, USA.
Science (New York, N.Y.)
|May 18, 2019
Resumen
Los investigadores están explorando la estructuración del dominio de tiempo de las metasuperficies ópticas para un control avanzado de la luz. Este enfoque dinámico promete ópticas planas revolucionarias para la configuración activa de frentes de onda en tecnologías emergentes.
Área de la Ciencia:
- Óptica y fotónica
- Ciencias de los materiales
- Nanotecnología
Sus antecedentes:
- Las metasuperficies ópticas permiten el control de la luz a través de la estructuración del material espacial.
- La dualidad espacio-tiempo de las ecuaciones de Maxwell sugiere que la estructura temporal puede mejorar el control óptico.
Objetivo del estudio:
- Explorar el potencial de la estructuración del dominio del tiempo de las metasuperficies ópticas.
- Investigar nuevos materiales y nanoestructuras para cambios dinámicos de propiedades ópticas.
- Para entender la física emergente en las metasuperficies sintonizables ultrarrápidas.
Principales métodos:
- Desarrollo de nuevos materiales y nanoestructuras.
- Investigación de los mecanismos de ajuste ultrarrápido para las metasuperficies.
- Exploración de los principios de dualidad espacio-tiempo en sistemas ópticos.
Principales resultados:
- La física emergente incluye la emulación del efecto Doppler, la no reciprocidad de Lorentz, la óptica invertida en el tiempo y la refracción negativa.
- El ajuste ultrarrápido de las metasuperficies se está volviendo posible.
- Potencial para ópticas planas dinámicas con formación activa del frente de onda.
Conclusiones:
- La estructuración de dominio de tiempo de las metasuperficies ópticas ofrece un control expandido sobre la luz.
- Los avances se basan en materiales con rápidos y grandes cambios de propiedades ópticas.
- La óptica plana dinámica podría revolucionar las tecnologías que necesitan una configuración de frente de onda compacta y eficiente.
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