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

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

doi:10.1117/1.OE.59.11.110501

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 journal › Article › peer-review

9 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 language	English (US)
Article number	110501
Journal	Optical Engineering
Volume	59
Issue number	11
DOIs	https://doi.org/10.1117/1.OE.59.11.110501
State	Published - Nov 1 2020

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
General Engineering

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10.1117/1.OE.59.11.110501

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

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{\texttrademark} 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.",

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AU - Kumar, Pankaj

AU - Rai, Smriti

AU - Bhattacharyya, Somak

AU - Lakhtakia, Akhlesh

AU - Kumar Jain, Pradip

PY - 2020/11/1

Y1 - 2020/11/1

N2 - 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.

AB - 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.

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

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