Continuous spectral and coupling-strength encoding with dual-gradient metasurfaces

HIGHLIGHTS

  • What: The authors explore spectral gradients that offer continuously spectrally tunable resonances. Experimentally, the authors investigate the effect of the gradients` spectral coverage on the resonance performance. The authors focus on using dual gradients to obtain new functionalities for the surface-enhanced infrared absorption spectroscopy (SEIRAS) of molecular systems15,50. The authors have investigated and established a framework for describing the working principles of spectral BIC gradients and discussed their limitations in terms of scaling increments of neighbouring unit cells.
  • Who: Andreas Aigner from the (UNIVERSITY) have published the paper: Continuous spectral and coupling-strength . . .

     

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