Enhanced biochemical sensing with high- Q transmission resonances in free-standing membrane metasurfaces

Optical metasurfaces provide solutions to label-free biochemical sensing by localizing light resonantly beyond the diffraction limit, thereby selectively enhancing light–matter interactions for improved analytical performance. However, high- Q resonances in metasurfaces are usually achieved in the reflection mode, which impedes metasurface integration into compact imaging systems. Here, we demonstrate a metasurface platform for advanced biochemical sensing based on the physics of the bound states in the continuum (BIC) and electromagnetically induced transparency (EIT) modes, which arise when two interfering resonances from a periodic pattern of tilted elliptic holes overlap both spectrally and spatially,…

• NS
  National Science Foundation

  Awards: 2309000, 2401616, DMR-2309000, DE-AC02-06CH11357
• UD
  U.S. Department of Energy

  Awards: AC02-06CH11357, DE-AC02, 06CH11357, DE-AC02-06CH11357, DE-AC02-
• UO
  University of Wisconsin-Madison

  Awards: DMR-2309000, DE-AC02-06CH11357
• NI
  National Institutes of Health

  Awards: R21EB034411, DE-AC02-06CH11357
• OO
  Office of Science

  Awards: DE-AC02-06CH11357, DE-AC02, 06CH11357, AC02-06CH11357
• AR
  Australian Research Council

  Award: DP210101292
• OO
  Office of Naval Research

  Awards: DE-AC02-06CH11357, N00014-20-1-2297, N00014
• NI
  National Institute of Biomedical Imaging and Bioengineering

  Award: R21EB034411
• DO
  Division of Materials Research

  Awards: 2309000, DE-AC02-06CH11357, DMR-2309000
• BE
  Basic Energy Sciences

  Awards: DE-AC02, AC02-06CH11357, 06CH11357
• AR
  Army Research Office

  Award: FA520923C0023
• AN
  Argonne National Laboratory

  Awards: DE-AC02, 06CH11357, AC02-06CH11357