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Descripción

Two-dimensional (2D) materials have great potential in photonic and optoelectronic devices. However, the relatively weak light absorption in 2D materials hinders their application in practical devices. Here, we propose a general approach to achieve angle-selective perfect light absorption in 2D materials. As a demonstration of the concept, we experimentally show giant light absorption by placing large-area single-layer graphene on a structure consisting of a chalcogenide layer atop a mirror and achieving a total absorption of 77.6% in the mid-infrared wavelength range (~13 μm), where the graphene contributes a record-high 47.2% absorptivity of mid-infrared light. Construction of such an angle-selective thin optical element is important for solar and thermal energy harvesting, photo-detection and sensing applications. Our study points to a new opportunity to combine 2D materials with photonic structures to enable novel device applications.

Pertenece a

DSpace at MIT  

Autor(es)

Zhu, Linxiao -  Liu, Fengyuan -  Yu, Zongfu -  Wang, Xinran -  Fan, Shanhui -  Lin, Hongtao -  Hu, Juejun - 

Id.: 70133801

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  http://purl.org/eprint/type/JournalArticle  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Creative Commons Attribution-Noncommercial-Share Alike

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Nature
[References] http://dx.doi.org/10.1038/LSA.2016.52
[References] Light: Science & Applications

Fecha de contribución: 15-oct-2017

Contacto:

Localización:
* 2047-7538
* Zhu, Linxiao, et al. “Angle-Selective Perfect Absorption with Two-Dimensional Materials.” Light: Science & Applications 5, 3 (December 2015): e16052 © 2017 Changchun Institute of Optics, Fine Mechanics and Physics
* PUBLISHER_CC

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