Journal article
Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics
Nanomaterials (Basel, Switzerland), Vol.11(9), p.2339
09/08/2021
DOI: 10.3390/nano11092339
PMCID: PMC8465231
PMID: 34578654
Abstract
The mid-infrared (MIR) is an exciting spectral range that also hosts useful molecular vibrational fingerprints. There is a growing interest in nanophotonics operating in this spectral range, and recent advances in plasmonic research are aimed at enhancing MIR infrared nanophotonics. In particular, the design of hybrid plasmonic metasurfaces has emerged as a promising route to realize novel MIR applications. Here we demonstrate a hybrid nanostructure combining graphene and silicon carbide to extend the spectral phonon response of silicon carbide and enable absorption and field enhancement of the MIR photon via the excitation and hybridization of surface plasmon polaritons and surface phonon polaritons. We combine experimental methods and finite element simulations to demonstrate enhanced absorption of MIR photons and the broadening of the spectral resonance of graphene-coated silicon carbide nanowires. We also indicate subwavelength confinement of the MIR photons within a thin oxide layer a few nanometers thick, sandwiched between the graphene and silicon carbide. This intermediate shell layer is characteristically obtained using our graphitization approach and acts as a coupling medium between the core and outer shell of the nanowires.
Details
- Title: Subtitle
- Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics
- Creators
- Patrick Rufangura - University of Technology SydneyIryna Khodasevych - Australian Research CouncilArti Agrawal - University of Technology SydneyMatteo Bosi - Institute of Materials for Electronics and MagnetismThomas G. Folland - University of IowaJoshua D. Caldwell - Vanderbilt UniversityFrancesca Iacopi - University of Technology Sydney
- Resource Type
- Journal article
- Publication Details
- Nanomaterials (Basel, Switzerland), Vol.11(9), p.2339
- DOI
- 10.3390/nano11092339
- PMID
- 34578654
- PMCID
- PMC8465231
- NLM abbreviation
- Nanomaterials (Basel)
- ISSN
- 2079-4991
- eISSN
- 2079-4991
- Publisher
- Mdpi
- Number of pages
- 14
- Grant note
- 1904793 / National Science Foundation, Division of Materials Research (NSF-DMR); National Science Foundation (NSF) Commonwealth of Australia; Australian Government 8673 / Defense Science and Technology Group CE200100010 / Australian Research Council through the Centre of Excellence for Transformative Meta-Optical Systems; Australian Research Council
- Language
- English
- Date published
- 09/08/2021
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428661502771
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