Terahertz detection using mechanical resonators based on 2D materials

Juha Hassel; Mika Oksanen; Teemu Elo; Heikki Seppä; Pertti J. Hakonen

doi:10.1063/1.4990405

Terahertz detection using mechanical resonators based on 2D materials

Juha Hassel, Mika Oksanen, Teemu Elo, Heikki Seppä, Pertti J. Hakonen

Aalto University

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

Abstract

We have investigated a THz detection scheme based on mixing of electrical signals in a voltage-dependent capacitance made out of suspended graphene. We have analyzed both coherent and incoherent detection regimes and compared their performance with the state of the art. Using a high-amplitude local oscillator, we anticipate potential for quantum limited detection in the coherent mode. The sensitivity stems from the extraordinary mechanical and electrical properties of atomically thin graphene or graphene-related 2D materials.

Original language	English
Article number	065014
Journal	AIP Advances
Volume	7
Issue number	6
DOIs	https://doi.org/10.1063/1.4990405
Publication status	Published - 1 Jun 2017
MoE publication type	A1 Journal article-refereed

Keywords

graphene
capacitance
quantum noise
terahertz detectors
antennas

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Cite this

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abstract = "We have investigated a THz detection scheme based on mixing of electrical signals in a voltage-dependent capacitance made out of suspended graphene. We have analyzed both coherent and incoherent detection regimes and compared their performance with the state of the art. Using a high-amplitude local oscillator, we anticipate potential for quantum limited detection in the coherent mode. The sensitivity stems from the extraordinary mechanical and electrical properties of atomically thin graphene or graphene-related 2D materials.",

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AU - Oksanen, Mika

AU - Elo, Teemu

AU - Seppä, Heikki

AU - Hakonen, Pertti J.

PY - 2017/6/1

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N2 - We have investigated a THz detection scheme based on mixing of electrical signals in a voltage-dependent capacitance made out of suspended graphene. We have analyzed both coherent and incoherent detection regimes and compared their performance with the state of the art. Using a high-amplitude local oscillator, we anticipate potential for quantum limited detection in the coherent mode. The sensitivity stems from the extraordinary mechanical and electrical properties of atomically thin graphene or graphene-related 2D materials.

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KW - capacitance

KW - quantum noise

KW - terahertz detectors

KW - antennas

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Terahertz detection using mechanical resonators based on 2D materials

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Keywords

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