An oblique-angle infrared circular polarization filter using a Bezier surface representation

Jason Ashbach, Douglas Henry Werner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a method to determine CO2 concentration by measuring relative circular polarization using 2D periodic unit cells of Bezier surfaces optimized using the Covariance Matrix Adaptation Evolution Strategy. The CO2 absorption spectrum has a peak which can be useful for measurement at 4.3 μm. A filter was designed to separate circularly polarized components of light at this frequency using the Covariance Matrix Adaptation Evolutionary Strategy (CMA-ES). The filter presented is capable of blocking the effects due to nearby absorption bands such as the N2O band at 4.5 μm.

Original languageEnglish (US)
Title of host publication2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1362-1363
Number of pages2
ISBN (Electronic)9781479978151
DOIs
StatePublished - Oct 22 2015
EventIEEE Antennas and Propagation Society International Symposium, APS 2015 - Vancouver, Canada
Duration: Jul 19 2015Jul 24 2015

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2015-October
ISSN (Print)1522-3965

Other

OtherIEEE Antennas and Propagation Society International Symposium, APS 2015
CountryCanada
CityVancouver
Period7/19/157/24/15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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