Nanofabricated Infrared Polarization and Color Filters for Cloud Thermodynamic Phase Determination

  • Andrew J. Hohne
  • , Benjamin Moon
  • , Carol L. Baumbauer
  • , Tristan Gray
  • , Martin Jan Tauc
  • , James Dilts
  • , David L. Dickensheets
  • , Joseph A. Shaw
  • , Wataru Nakagawa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Polarization and wavelength filters for the shortwave infrared based on metal-coated subwavelength-period silicon gratings are designed and fabricated. The nanostructure-based approach enables the realization of the desired polarization and wavelength selectivity for each filter element while also facilitating the integration of these elements into an array with varying polarizer orientation and passband center wavelength. These filters are optimized for a polarimetric imaging application in atmospheric science, namely, the discrimination of cloud thermodynamic phase (ice/water composition). Preliminary results support the viability of this approach.

Original languageEnglish
Title of host publicationInternational Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings
PublisherIEEE Computer Society
ISBN (Print)9781509063727
DOIs
StatePublished - 4 Sep 2018
Event23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Lausanne, Switzerland
Duration: 29 Jul 20182 Aug 2018

Publication series

NameInternational Conference on Optical MEMS and Nanophotonics
Volume2018-July
ISSN (Print)2160-5033
ISSN (Electronic)2160-5041

Conference

Conference23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018
Country/TerritorySwitzerland
CityLausanne
Period29/07/182/08/18

Keywords

  • atmospheric science
  • form-birefringence
  • optical nanostructures
  • polarimetry
  • polarization
  • wire-grid polarizer

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