Accession Number:

AD1090233

Title:

Angle- and polarization-independent mid-infrared narrowband optical filters using dense arrays of resonant cavities

Descriptive Note:

Journal Article - Open Access

Corporate Author:

AFRL/RYDH WPAFB United States

Report Date:

2019-10-15

Pagination or Media Count:

15.0

Abstract:

We report design and experimental verification of narrowband mid-infrared optical filters with transmission characteristics that are practically constant over a wide range of incident angles. The filter employs a dense array of dielectric resonant cavities in a metal film, and it becomes polarization-independent when geometry of the cavities is azimuthally symmetric.

Subject Categories:

  • Electricity and Magnetism
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE