Abstract
Broadband binary-pattern metasurface absorbers are designed and demonstrated in the mid-infrared wavelength range through the micro-genetic algorithm. The tungsten-based metasurface absorbers with the optimized binary-pattern nanostructures exhibit broadband near-perfect absorption due to the multiple plasmonic resonances supported within the unit cell. Furthermore, the influence of minor pixel modifications in the optimized binary-pattern nanostructures on the absorption performance is investigated in the experiment. This Letter presents a promising approach to design and optimize complex optical nanostructures with the desired properties for metamaterial and metasurface applications.
| Original language | American English |
|---|---|
| Pages (from-to) | 114-117 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 44 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2019 |
Keywords
- Genetic algorithms
- Plasmonics
- Absorption performance
- Binary patterns
- Metasurface
- Micro genetic algorithm
- Mid-infrared wavelength ranges
- Optical nanostructures
- Pixel modification
- Plasmonic resonances
- Nanostructures
Disciplines
- Mechanical Engineering
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