Advanced Methods to Substantially Achieve the Multi-Functional Infrared Sensors Technologies for Multi-Spectral and Polarimetric Infrared Images

Abstract

We have designed, fabricated and characterized surface plasmonic structures for multispectral and polarization imaging sensors. We introduced two periodic array structures of square coaxial aperture (SCA) and quasi-three-dimensional circular coaxial aperture (quasi-3D CCA) onto InAs/GaSb type-II superlattice (T2SL) photodetectors. By adjusting the pitch of the array, multispectral filtering of the SCA and quasi-3D CCA integrated T2SL detectors is successfully performed at the detector level in the spectral ranges of 2.44 m and 35 m, respectively. In addition, we have developed a fabrication process for large-area (22) super pixelated subwavelength gold gratings with four different orientations of 0, 45, 90, and 135 degrees, using UV nanoimprint lithography. This process can be adopted as a promising technique to fabricate next-generation large-format polarimetric imagers with high extinction ratio.

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Document Details

Document Type
Technical Report
Publication Date
Nov 29, 2021
Accession Number
AD1157963

Entities

People

  • Sang J. Lee

Organizations

  • Korea Research Institute of Standards and Science

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Analyzers
  • Detectors
  • Electron Beam Lithography
  • Electron Beams
  • Energy Bands
  • Fabrication
  • Focal Plane Arrays
  • Focal Planes
  • Infrared Detectors
  • Infrared Images
  • Lithography
  • Plasmonic Metamaterials
  • Readout Integrated Circuits
  • Standards
  • Surface Plasmon Resonance
  • Surface Plasmons
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Nanofabrication and Microfabrication.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.