skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tunable infrared pixels having unpatterned graphene layer and conductive metasurface

Patent ·
OSTI ID:1986746

A monolithically integrated, tunable infrared pixel comprises a combined broadband detector and graphene-enabled tunable metasurface filter that operate as a single solid-state device with no moving parts. Functionally, tunability results from the plasmonic properties of graphene that are acutely dependent upon the carrier concentration within the infrared. Voltage induced changes in graphene's carrier concentration can be leveraged to change the metasurface filter's transmission thereby altering the “colors” of light reaching the broadband detector and hence its spectral responsivity. The invention enables spectrally agile infrared detection with independent pixel-to-pixel spectral tunability.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0003525
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
11,482,560
Application Number:
16/930,520
OSTI ID:
1986746
Resource Relation:
Patent File Date: 07/16/2020
Country of Publication:
United States
Language:
English

References (22)

Highly Confined Tunable Mid-Infrared Plasmonics in Graphene Nanoresonators journal May 2013
Effects of layer thickness and alloy composition on carrier lifetimes in mid-wave infrared InAs/InAsSb superlattices journal July 2014
Tunable Terahertz Hybrid Metal–Graphene Plasmons journal September 2015
Plasmonics in graphene at infrared frequencies journal December 2009
Enhanced infrared detectors using resonant structures combined with thin type-II superlattice absorbers journal December 2016
Far infrared edge photoresponse and persistent edge transport in an inverted InAs/GaSb heterostructure journal January 2016
Auger recombination in long-wave infrared InAs/InAsSb type-II superlattices journal December 2015
Gated Tunability and Hybridization of Localized Plasmons in Nanostructured Graphene journal February 2013
Wide Wavelength Tuning of Optical Antennas on Graphene with Nanosecond Response Time journal December 2013
Highly confined low-loss plasmons in graphene–boron nitride heterostructures journal December 2014
Mid-wavelength high operating temperature barrier infrared detector and focal plane array journal July 2018
Optical Filter and Electronic Device Including the Same patent-application April 2017
Edge and Surface Plasmons in Graphene Nanoribbons journal November 2015
Tuning and Persistent Switching of Graphene Plasmons on a Ferroelectric Substrate journal July 2015
Gate-tuning of graphene plasmons revealed by infrared nano-imaging journal June 2012
Optical Modulator, Imaging Device and Display Apparatus patent-application June 2015
Optical nano-imaging of gate-tunable graphene plasmons journal June 2012
Performance Comparison of Long-Wavelength Infrared Type II Superlattice Devices with HgCdTe journal May 2011
Hybrid Surface-Phonon-Plasmon Polariton Modes in Graphene/Monolayer h-BN Heterostructures journal June 2014
Electro-Optical Waveguide Apparatuses and Methods Thereof patent-application January 2014
Designing graphene absorption in a multispectral plasmon-enhanced infrared detector journal January 2017
Thin Film Plasmonic Optical Modulator patent-application January 2018