Towards Perfect Impedance Matching of Free Space to a 2D Material

Phi H.Q. Pharn; Yung-Yu Wang; Peter Burke; Weidong Zhang; Elliott R. Brown

doi:10.1109/EuMC.2014.6986722

Towards Perfect Impedance Matching of Free Space to a 2D Material

Phi H.Q. Pharn, Yung-Yu Wang, Peter Burke, Weidong Zhang, Elliott R. Brown

Wright State University

Research output: Contribution to conference › Presentation

Abstract

Graphene, with its distinctive and outstanding optoelectronic properties, has prompted its use in a wide variety of applications such as transparent conductive electrodes and modulators. Recently, due to advances in graphene synthesis methods, large-area graphene field effect transistors (GFET) have displayed unique modulation of terahertz waves. By transferring chemical vapor deposited graphene films (~1cm × 1cm) onto a high resistivity silicon substrate to fabricate a GFET, we calculate the AC conductivity extrapolated by measuring the terahertz transmission. We demonstrate the tunable modulation of the AC conductivity using a DC gate voltage, in parallel with broadband (0.2-1.2 THz) frequency domain measurements.

Original language	American English
DOIs	https://doi.org/10.1109/EuMC.2014.6986722
State	Published - Oct 1 2014
Event	Proceedings of the 44th European Microwave Conference - Duration: Oct 1 2014 → …

Conference

Conference	Proceedings of the 44th European Microwave Conference
Period	10/1/14 → …

Keywords

Graphene, Terahertz, THz

Disciplines

Physical Sciences and Mathematics
Physics

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10.1109/EuMC.2014.6986722License: Unspecified

Cite this

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title = "Towards Perfect Impedance Matching of Free Space to a 2D Material",

abstract = " Graphene, with its distinctive and outstanding optoelectronic properties, has prompted its use in a wide variety of applications such as transparent conductive electrodes and modulators. Recently, due to advances in graphene synthesis methods, large-area graphene field effect transistors (GFET) have displayed unique modulation of terahertz waves. By transferring chemical vapor deposited graphene films (~1cm × 1cm) onto a high resistivity silicon substrate to fabricate a GFET, we calculate the AC conductivity extrapolated by measuring the terahertz transmission. We demonstrate the tunable modulation of the AC conductivity using a DC gate voltage, in parallel with broadband (0.2-1.2 THz) frequency domain measurements.",

keywords = "Graphene, Terahertz, THz",

author = "Pharn, {Phi H.Q.} and Yung-Yu Wang and Peter Burke and Weidong Zhang and Brown, {Elliott R.}",

year = "2014",

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doi = "10.1109/EuMC.2014.6986722",

language = "American English",

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T1 - Towards Perfect Impedance Matching of Free Space to a 2D Material

AU - Pharn, Phi H.Q.

AU - Wang, Yung-Yu

AU - Burke, Peter

AU - Zhang, Weidong

AU - Brown, Elliott R.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Graphene, with its distinctive and outstanding optoelectronic properties, has prompted its use in a wide variety of applications such as transparent conductive electrodes and modulators. Recently, due to advances in graphene synthesis methods, large-area graphene field effect transistors (GFET) have displayed unique modulation of terahertz waves. By transferring chemical vapor deposited graphene films (~1cm × 1cm) onto a high resistivity silicon substrate to fabricate a GFET, we calculate the AC conductivity extrapolated by measuring the terahertz transmission. We demonstrate the tunable modulation of the AC conductivity using a DC gate voltage, in parallel with broadband (0.2-1.2 THz) frequency domain measurements.

AB - Graphene, with its distinctive and outstanding optoelectronic properties, has prompted its use in a wide variety of applications such as transparent conductive electrodes and modulators. Recently, due to advances in graphene synthesis methods, large-area graphene field effect transistors (GFET) have displayed unique modulation of terahertz waves. By transferring chemical vapor deposited graphene films (~1cm × 1cm) onto a high resistivity silicon substrate to fabricate a GFET, we calculate the AC conductivity extrapolated by measuring the terahertz transmission. We demonstrate the tunable modulation of the AC conductivity using a DC gate voltage, in parallel with broadband (0.2-1.2 THz) frequency domain measurements.

KW - Graphene, Terahertz, THz

UR - https://corescholar.libraries.wright.edu/physics/909

U2 - 10.1109/EuMC.2014.6986722

DO - 10.1109/EuMC.2014.6986722

M3 - Presentation

T2 - Proceedings of the 44th European Microwave Conference

Y2 - 1 October 2014

ER -

Towards Perfect Impedance Matching of Free Space to a 2D Material

Abstract

Conference

Keywords

Disciplines

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