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

Title: Coupled surface plasmon–phonon polariton nanocavity arrays for enhanced mid-infrared absorption

Journal Article · · Nanophotonics (Online)
 [1]; ORCiD logo [2];  [3];  [3];  [4]; ORCiD logo [5]; ORCiD logo [1]
  1. Texas Tech Univ., Lubbock, TX (United States); University of Texas Rio Grande Valley, Brownsville, TX (United States)
  2. Univ. of Houston, TX (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Texas Tech Univ., Lubbock, TX (United States)
  4. Univ. of Houston, TX (United States)
  5. Texas Tech Univ., Lubbock, TX (United States); Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of)

Resonant optical cavities are essential components in mid-infrared applications. However, typical film-type cavities require multilayer stacks with a micron-thick spacer due to mid-infrared wavelengths, and their performance is limited by narrow frequency tunability and angular sensitivity. We propose and experimentally demonstrate the subwavelength-scale (≈λ0/150) resonant nanocavity arrays that enhance the absorption spectrum of the device in the mid-infrared (10–12 microns) via excitation of coupled surface plasmon–phonon polaritons. The proposed metal–insulator–polar dielectric (gold–silicon–silicon carbide) structure supports a guided mode of the coupled surface polaritons in the lateral direction while vertically confining the mid-infrared wave within the 80 nm thick dielectric spacer. In particular, the subwavelength-scale (≈λ0/10) gratings are imposed to form Fabry–Pérot cavity arrays displaying angle-insensitive and frequency-tunable absorption of up to 80% of the optical power in the mid-infrared. Our work should benefit diverse mid-infrared applications and novel designs of polariton-based photonic devices.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
Grant/Contract Number:
AC02-07CH11359; 89233218CNA000001; NA0003525; ECCS-2025227
OSTI ID:
1893729
Report Number(s):
FERMILAB-PUB-22-768-SQMS; oai:inspirehep.net:2167218; TRN: US2310225
Journal Information:
Nanophotonics (Online), Vol. 11, Issue 20; ISSN 2192-8614
Publisher:
de GruyterCopyright Statement
Country of Publication:
United States
Language:
English

References (37)

How to deal with the loss in plasmonics and metamaterials journal January 2015
Applications of nanolasers journal December 2018
Angle-insensitive and solar-blind ultraviolet bandpass filter journal October 2014
Plasmonic Waveguide Modes of Film-Coupled Metallic Nanocubes journal November 2013
Surface Plasmons in Thin Films journal June 1969
Low-loss, infrared and terahertz nanophotonics using surface phonon polaritons journal January 2015
Tunable Terahertz Hybrid Metal–Graphene Plasmons journal September 2015
Interaction and hybridization of orthogonal Fabry-Pérot like surface plasmon modes in metal-dielectric grating structures journal January 2020
Tunable Absorption of Light via Localized Plasmon Resonances on a Metal Surface with Interspaced Ultra-thin Metal Gratings journal October 2010
Perfect coupling of light to surface plasmons by coherent absorption journal May 2012
Why Metallic Surfaces with Grooves a Few Nanometers Deep and Wide May Strongly Absorb Visible Light journal February 2008
Photoinduced tunability of the reststrahlen band in 4 H SiC journal February 2016
Active tuning of surface phonon polariton resonances via carrier photoinjection journal December 2017
Large Enhancement of Nonlinear Optical Phenomena by Plasmonic Nanocavity Gratings journal December 2010
Low-Loss, Extreme Subdiffraction Photon Confinement via Silicon Carbide Localized Surface Phonon Polariton Resonators journal July 2013
High performance optical absorber based on a plasmonic metamaterial journal June 2010
Near-field imaging of mid-infrared surface phonon polariton propagation journal August 2005
Spectral properties of plasmonic resonator antennas journal January 2008
Figures of merit for surface plasmon waveguides journal January 2006
Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption journal April 2021
Controlled-reflectance surfaces with film-coupled colloidal nanoantennas journal December 2012
Total absorption of light by lamellar metallic gratings journal September 2008
Strong and Coherent Coupling between Localized and Propagating Phonon Polaritons journal June 2016
A submicron broadband surface-plasmon-polariton unidirectional coupler journal June 2013
How grooves reflect and confine surface
plasmon polaritons journal June 2009
Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers journal November 2011
Terahertz band gaps induced by metal grooves inside parallel-plate waveguides journal February 2012
Plasmonics: Fundamentals and Applications book January 2007
Tuning localized plasmon cavities for optimized surface-enhanced Raman scattering journal July 2007
Enhanced transmission of slit arrays in an extremely thin metallic film journal January 2007
Plasmon slot waveguides: Towards chip-scale propagation with subwavelength-scale localization journal January 2006
Nanoimprinted plasmonic nanocavity arrays journal June 2013
Ultra-thin perfect absorber employing a tunable phase change material journal November 2012
Plasmonics: visit the past to know the future journal October 2012
Overcoming evanescent field decay using 3D-tapered nanocavities for on-chip targeted molecular analysis journal June 2020
Resonant Enhancement of Second-Harmonic Generation in the Mid-Infrared Using Localized Surface Phonon Polaritons in Subdiffractional Nanostructures journal October 2016
Aspect-ratio driven evolution of high-order resonant modes and near-field distributions in localized surface phonon polariton nanostructures journal September 2016