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Title: Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer

Abstract

An actively tunable optical filter can control the amplitude of reflected infrared light. The filter exploits the dependence of the excitation energy of plasmons in a continuous and unpatterned sheet of graphene, on the Fermi-level, which can be controlled by conventional electrostatic gating. An exemplary filter enables simultaneous modification of two distinct spectral bands whose positions are dictated by the device geometry and graphene plasmon dispersion. Within these bands, the reflected amplitude can be varied by over 15% and resonance positions can be shifted by over 90 cm−1. Electromagnetic simulations verify that tuning arises through coupling of incident light to graphene plasmons by a nanoantenna grating structure. Importantly, the tunable range is determined by a combination of graphene properties, device structure, and the surrounding dielectrics, which dictate the plasmon dispersion. Thus, the underlying design is applicable across a broad range of infrared frequencies.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1771771
Patent Number(s):
10877194
Application Number:
15/872,293
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/16/2018
Country of Publication:
United States
Language:
English

Citation Formats

Beechem, III, Thomas Edwin, Goldflam, Michael, Howell, Stephen W., Peters, David W., Ruiz, Isaac, and Davids, Paul. Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer. United States: N. p., 2020. Web.
Beechem, III, Thomas Edwin, Goldflam, Michael, Howell, Stephen W., Peters, David W., Ruiz, Isaac, & Davids, Paul. Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer. United States.
Beechem, III, Thomas Edwin, Goldflam, Michael, Howell, Stephen W., Peters, David W., Ruiz, Isaac, and Davids, Paul. Tue . "Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer". United States. https://www.osti.gov/servlets/purl/1771771.
@article{osti_1771771,
title = {Tunable graphene-based infrared reflectance filter having patterned nanoantenna layer and unpatterned graphene layer},
author = {Beechem, III, Thomas Edwin and Goldflam, Michael and Howell, Stephen W. and Peters, David W. and Ruiz, Isaac and Davids, Paul},
abstractNote = {An actively tunable optical filter can control the amplitude of reflected infrared light. The filter exploits the dependence of the excitation energy of plasmons in a continuous and unpatterned sheet of graphene, on the Fermi-level, which can be controlled by conventional electrostatic gating. An exemplary filter enables simultaneous modification of two distinct spectral bands whose positions are dictated by the device geometry and graphene plasmon dispersion. Within these bands, the reflected amplitude can be varied by over 15% and resonance positions can be shifted by over 90 cm−1. Electromagnetic simulations verify that tuning arises through coupling of incident light to graphene plasmons by a nanoantenna grating structure. Importantly, the tunable range is determined by a combination of graphene properties, device structure, and the surrounding dielectrics, which dictate the plasmon dispersion. Thus, the underlying design is applicable across a broad range of infrared frequencies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {12}
}

Works referenced in this record:

Highly Confined Tunable Mid-Infrared Plasmonics in Graphene Nanoresonators
journal, May 2013


Tunable Terahertz Hybrid Metal–Graphene Plasmons
journal, September 2015


Optical nano-imaging of gate-tunable graphene plasmons
journal, June 2012


Gated Tunability and Hybridization of Localized Plasmons in Nanostructured Graphene
journal, February 2013


Hybrid Surface-Phonon-Plasmon Polariton Modes in Graphene/Monolayer h-BN Heterostructures
journal, June 2014


Thin Film Plasmonic Optical Modulator
patent-application, January 2018