Experimental Demonstration of Total Absorption over 99% in the Near Infrared for Monolayer-Graphene-Based Subwavelength Structures

Experimental Demonstration of Total Absorption over 99% in the Near Infrared for Monolayer-Graphene-Based Subwavelength Structures

Monolayer graphene coupled with subwavelength gratings on top of a gold mirror are experimentally demonstrated with a total absorption of over 99% at a wavelength around 1.5 μm with full‐width half maximum (FWHM) about 20 nm. The experimental results confirm convincingly the theoretical prediction o...

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Veröffentlicht in:Advanced optical materials 2016-12, Vol.4 (12), p.1955-1960
Hauptverfasser: Guo, Chu-Cai, Zhu, Zhi-Hong, Yuan, Xiao-Dong, Ye, Wei-Min, Liu, Ken, Zhang, Jian-Fa, Xu, Wei, Qin, Shi-Qiao
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
complete absorption
Diffraction gratings
Gold
Graphene
Gratings (spectra)
Monolayers
Near infrared radiation
Optics
subwavelength structures
Wavelengths
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Zusammenfassung:Monolayer graphene coupled with subwavelength gratings on top of a gold mirror are experimentally demonstrated with a total absorption of over 99% at a wavelength around 1.5 μm with full‐width half maximum (FWHM) about 20 nm. The experimental results confirm convincingly the theoretical prediction of complete optical absorption for monolayer‐graphene‐based structures in the near‐infrared range.
ISSN:2195-1071
2195-1071
DOI:10.1002/adom.201600481