Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers

Tianjing Guo; Christos Argyropoulos

doi:10.1109/IEEECONF35879.2020.9330288

Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers

Tianjing Guo, Christos Argyropoulos

Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

This work reports a novel asymmetric bifacial graphene metasurface design exhibiting broadband coherent perfect absorption (CPA) at low terahertz (THz) frequencies. Nonlinear CPA performance without resorting to optical nonlinearities, as well as amplification are demonstrated based on wave interference phenomena taking place in this subwavelength structure. The proposed design is composed of two graphene square patch arrays with different dimensions stacked over an ultrathin dielectric substrate. Asymmetric reflection in a broad frequency range is obtained that leads to the presented broadband and nonlinear CPA response and amplifying performance. The proposed ultrathin broadband CPA device is expected to be an important component to several new on-chip THz communication devices, such as sensors, coherent detectors, all-optical modulators, and small-signal amplifiers.

Original language	English (US)
Title of host publication	2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	727-728
Number of pages	2
ISBN (Electronic)	9781728166704
DOIs	https://doi.org/10.1109/IEEECONF35879.2020.9330288
State	Published - Jul 5 2020
Event	2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Virtually, Toronto, Canada Duration: Jul 5 2020 → Jul 10 2020

Publication series

Name	2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings

Conference

Conference	2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020
Country/Territory	Canada
City	Virtually, Toronto
Period	7/5/20 → 7/10/20

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Instrumentation

Access to Document

10.1109/IEEECONF35879.2020.9330288

Cite this

Guo, T., & Argyropoulos, C. (2020). Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers. In 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings (pp. 727-728). Article 9330288 (2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEEECONF35879.2020.9330288

Guo, Tianjing ; Argyropoulos, Christos. / Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers. 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 727-728 (2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings).

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title = "Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers",

abstract = "This work reports a novel asymmetric bifacial graphene metasurface design exhibiting broadband coherent perfect absorption (CPA) at low terahertz (THz) frequencies. Nonlinear CPA performance without resorting to optical nonlinearities, as well as amplification are demonstrated based on wave interference phenomena taking place in this subwavelength structure. The proposed design is composed of two graphene square patch arrays with different dimensions stacked over an ultrathin dielectric substrate. Asymmetric reflection in a broad frequency range is obtained that leads to the presented broadband and nonlinear CPA response and amplifying performance. The proposed ultrathin broadband CPA device is expected to be an important component to several new on-chip THz communication devices, such as sensors, coherent detectors, all-optical modulators, and small-signal amplifiers.",

author = "Tianjing Guo and Christos Argyropoulos",

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doi = "10.1109/IEEECONF35879.2020.9330288",

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series = "2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings",

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Guo, T & Argyropoulos, C 2020, Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers. in 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings., 9330288, 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 727-728, 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020, Virtually, Toronto, Canada, 7/5/20. https://doi.org/10.1109/IEEECONF35879.2020.9330288

Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers. / Guo, Tianjing; Argyropoulos, Christos.
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. p. 727-728 9330288 (2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - This work reports a novel asymmetric bifacial graphene metasurface design exhibiting broadband coherent perfect absorption (CPA) at low terahertz (THz) frequencies. Nonlinear CPA performance without resorting to optical nonlinearities, as well as amplification are demonstrated based on wave interference phenomena taking place in this subwavelength structure. The proposed design is composed of two graphene square patch arrays with different dimensions stacked over an ultrathin dielectric substrate. Asymmetric reflection in a broad frequency range is obtained that leads to the presented broadband and nonlinear CPA response and amplifying performance. The proposed ultrathin broadband CPA device is expected to be an important component to several new on-chip THz communication devices, such as sensors, coherent detectors, all-optical modulators, and small-signal amplifiers.

AB - This work reports a novel asymmetric bifacial graphene metasurface design exhibiting broadband coherent perfect absorption (CPA) at low terahertz (THz) frequencies. Nonlinear CPA performance without resorting to optical nonlinearities, as well as amplification are demonstrated based on wave interference phenomena taking place in this subwavelength structure. The proposed design is composed of two graphene square patch arrays with different dimensions stacked over an ultrathin dielectric substrate. Asymmetric reflection in a broad frequency range is obtained that leads to the presented broadband and nonlinear CPA response and amplifying performance. The proposed ultrathin broadband CPA device is expected to be an important component to several new on-chip THz communication devices, such as sensors, coherent detectors, all-optical modulators, and small-signal amplifiers.

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M3 - Conference contribution

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Guo T, Argyropoulos C. Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers. In 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2020. p. 727-728. 9330288. (2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings). doi: 10.1109/IEEECONF35879.2020.9330288

Nonlinear and Amplification Response with Asymmetric Graphene-based Coherent Perfect Absorbers

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