Phase bifurcation and zero reflection in planar plasmonic metasurfaces

Chen Yan, T. V. Raziman, Olivier J.F. Martin

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

We introduce a general formalism combining the coupled oscillator model with the transfer matrix method to analyze and engineer the phase of the light reflected from a Fano-resonant metasurface. This method accounts for periodicity and the presence of substrates, and we demonstrate that these factors can be used to tune the reflected phase at will. Utilizing these effects and adjusting the coupling strength of the underlying unit cell, we achieve zero reflection at the dark resonance of the metasurface. We show that the resulting phase singularity can dramatically increase the sensitivity of phase-based detection schemes. The phase bifurcation unveiled in this work can be used to design plasmonic metasurfaces that explore the unusual phase behavior of light.

Original languageEnglish
Pages (from-to)852-860
Number of pages9
JournalACS Photonics
Volume4
Issue number4
DOIs
Publication statusPublished - 19 Apr 2017
Externally publishedYes

Keywords

  • metasurfaces
  • phase singularity
  • plasmonics

Fingerprint Dive into the research topics of 'Phase bifurcation and zero reflection in planar plasmonic metasurfaces'. Together they form a unique fingerprint.

Cite this