Multi-Spectral Near Perfect Metamaterial Absorbers Using Spatially Multiplexed Plasmon Resonance Metal Square Structures (Preprint)
Abstract
We designed and experimentally demonstrated several dual spectral-band and triple spectral-band near perfect metamaterial absorbers in the mid-wave IR regime using spatially multiplexed metal square structures. For the dual-band absorbers, optical power absorptions over 95% at two separate wavelengths were observed. For the triple-band metamaterial absorbers, optical absorptions over 92.5% were observed at three separate wavelengths. The experimental results show that the peak absorption wavelengths of the metamaterial absorbers are primarily controlled by the sizes of the metal squares. We simulated the electrical field distributions in the middle plane of the dielectric spacing layer at the peak absorption wavelengths. The electric field distributions show that the strong light absorptions correspond to the local quadrupole mode plasmon resonances in the multiplexed metal square metamaterial structures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2013
- Accession Number
- ADA586498
Entities
People
- Boyang Zhang
- Joshua R Hendrickson
- Jungpeng Guo
Organizations
- Air Force Research Laboratory