Graphene-sandwich metasurface as a frequency shifter, switch, and isolator at terahertz frequencies

Pankaj Kumar, Smriti Rai, Somak Bhattacharyya, Akhlesh Lakhtakia, Pradip Kumar Jain

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A graphene-sandwich metasurface for electrically controlled operation as a frequency shifter, a reciprocal switch, and a bidirectional isolator in the terahertz spectral regime was simulated using CST Microwave Studio™ 2019 software. The metasurface is a biperiodic array of identical meta-atoms, each of which comprises a silicon layer with a graphene patch on each of its two faces. The polarization-insensitive metasurface has ∼1/415 dB isolation loss as well as ∼1/415 dB extinction ratio and can be controlled to function over a wide frequency range.

Original languageEnglish (US)
Article number110501
JournalOptical Engineering
Volume59
Issue number11
DOIs
StatePublished - Nov 1 2020

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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