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Title: Broadband infrared binary-pattern metasurface absorbers with micro-genetic algorithm optimization

Journal Article · · Optics Letters
 [1];  [2];  [2];  [1];  [1]
  1. Missouri Univ. of Science and Technology, Rolla, MO (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
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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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); Office of Naval Research; USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1524589
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 1 Vol. 44; ISSN OPLEDP; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

Ultra-broadband metamaterial absorber based on all-metal nanostructures journal August 2019
Broadband mid-infrared perfect absorber using fractal Gosper curve journal December 2019
Strong circular dichroism in chiral plasmonic metasurfaces optimized by micro-genetic algorithm journal January 2019
Broadband mid-infrared perfect absorber using fractal Gosper curve text January 2019

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