Graphene-based absorber exploiting guided mode resonances in one-dimensional gratings

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Abstract

A one-dimensional dielectric grating, based on a simple geometry, is proposed and investigated to enhance light absorption in a monolayer graphene exploiting guided mode resonances. Numerical findings reveal that the optimized configuration is able to absorb up to 60% of the impinging light at normal incidence for both TE and TM polarizations resulting in a theoretical enhancement factor of about 26 with respect to the monolayer graphene absorption (≈2.3%). Experimental results confirm this behavior showing CVD graphene absorbance peaks up to about 40% over narrow bands of a few nanometers. The simple and flexible design points to a way to realize innovative, scalable and -easy-to fabricate-graphene-based optical absorbers.

Autore Pugliese

Tutti gli autori

  • Grande, M. , Vincenti, M.A. , Stomeo, T. , Bianco, G.V. , De Ceglia, D. , Aközbek, N. , Petruzzelli, V. , Bruno, G. , De Vittorio, M. , Scalora, M. , D'Orazio, A.

Titolo volume/Rivista

OPTICS EXPRESS

Anno di pubblicazione

2014

ISSN

1094-4087

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

26

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile