Angle- and polarization-independent mid-infrared narrowband optical filters using dense arrays of resonant cavities
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 2019
- Accession Number
- AD1090233
Entities
People
- E. M. Smith
- Ivan Avrutsky
- Joshua R Hendrickson
- Justin W. Cleary
- Ricky Gibson
- Shivashankar Vangala