articleACS PhotonicsMar 3, 2014HYBRID OA

Total Absorption in a Graphene Monolayer in the Optical Regime by Critical Coupling with a Photonic Crystal Guided Resonance

JPJessica PiperSFShanhui Fan

Stanford University

Indexed incrossref

Abstract

We numerically demonstrate total absorption in graphene in the near-infrared and visible wavelength ranges by means of critical coupling with guided resonances of a photonic crystal slab. In this wavelength range, there is no plasmonic response in undoped graphene, so the critical coupling is entirely controlled by the properties of the photonic crystal resonance. We discuss the general theory and conditions for absorption enhancement and critical coupling in a thin film and give design rules for a totally absorbing system. We present examples in the near-infrared and visible, using both a lossless metallic mirror and a realistic multilayer dielectric mirror.

Citation impact

638
total citations
FWCI
31.34
Percentile
100%
References
37
Citations per year

Authors

2

Topics & keywords

Topics
Keywords
  • Photonic crystal
  • Materials science
  • Graphene
  • Optoelectronics
  • Resonance (particle physics)
  • Absorption (acoustics)
  • Dielectric
  • Plasmon
No related works found for this paper.

Funding