Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy

Bjorn Hubschmann Molvig; Thorsten Bak; Jie Ji; Peter Bøggild; Simon Jappe Lange; Peter Uhd Jepsen

doi:10.1109/IRMMW-THz57677.2023.10299062

Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy

Bjorn Hubschmann Molvig, Thorsten Bak, Jie Ji, Peter Bøggild, Simon Jappe Lange, Peter Uhd Jepsen

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Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Abstract

A novel THz Cross-Correlation system is presented and used for spectroscopy on few-layer graphene in the 0.1-1.4 THz range. The system utilizes photomixing of a telecom wavelength amplified spontaneous emission light source in a photoconductive antenna for THz generation and coherent cross-correlation sampling in a photoconductive antenna for detection. In addition to extracting the electrical properties of graphene using a spectroscopic model, we propose to extract the electrical properties by correlation to the time-domain peak-to-peak values of the obtained THz pulses, allowing for extraction at much higher rates.

Original language	English
Title of host publication	Proceedings of 48^th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Number of pages	2
Publisher	IEEE
Publication date	2023
ISBN (Print)	979-8-3503-3661-0
DOIs	https://doi.org/10.1109/IRMMW-THz57677.2023.10299062
Publication status	Published - 2023
Event	48^th International Conference on Infrared, Millimeter, and Terahertz Waves - Montreal, Canada Duration: 17 Sept 2023 → 22 Sept 2023

Conference

Conference	48^th International Conference on Infrared, Millimeter, and Terahertz Waves
Country/Territory	Canada
City	Montreal
Period	17/09/2023 → 22/09/2023

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10.1109/IRMMW-THz57677.2023.10299062

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title = "Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy",

abstract = "A novel THz Cross-Correlation system is presented and used for spectroscopy on few-layer graphene in the 0.1-1.4 THz range. The system utilizes photomixing of a telecom wavelength amplified spontaneous emission light source in a photoconductive antenna for THz generation and coherent cross-correlation sampling in a photoconductive antenna for detection. In addition to extracting the electrical properties of graphene using a spectroscopic model, we propose to extract the electrical properties by correlation to the time-domain peak-to-peak values of the obtained THz pulses, allowing for extraction at much higher rates.",

author = "Molvig, {Bjorn Hubschmann} and Thorsten Bak and Jie Ji and Peter B{\o}ggild and Lange, {Simon Jappe} and Jepsen, {Peter Uhd}",

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Molvig, BH, Bak, T, Ji, J, Bøggild, P , Lange, SJ & Jepsen, PU 2023, Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy. in Proceedings of 48^th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 48^th International Conference on Infrared, Millimeter, and Terahertz Waves, Montreal, Quebec, Canada, 17/09/2023. https://doi.org/10.1109/IRMMW-THz57677.2023.10299062

TY - CHAP

T1 - Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy

AU - Molvig, Bjorn Hubschmann

AU - Bak, Thorsten

AU - Ji, Jie

AU - Bøggild, Peter

AU - Lange, Simon Jappe

AU - Jepsen, Peter Uhd

PY - 2023

Y1 - 2023

N2 - A novel THz Cross-Correlation system is presented and used for spectroscopy on few-layer graphene in the 0.1-1.4 THz range. The system utilizes photomixing of a telecom wavelength amplified spontaneous emission light source in a photoconductive antenna for THz generation and coherent cross-correlation sampling in a photoconductive antenna for detection. In addition to extracting the electrical properties of graphene using a spectroscopic model, we propose to extract the electrical properties by correlation to the time-domain peak-to-peak values of the obtained THz pulses, allowing for extraction at much higher rates.

AB - A novel THz Cross-Correlation system is presented and used for spectroscopy on few-layer graphene in the 0.1-1.4 THz range. The system utilizes photomixing of a telecom wavelength amplified spontaneous emission light source in a photoconductive antenna for THz generation and coherent cross-correlation sampling in a photoconductive antenna for detection. In addition to extracting the electrical properties of graphene using a spectroscopic model, we propose to extract the electrical properties by correlation to the time-domain peak-to-peak values of the obtained THz pulses, allowing for extraction at much higher rates.

U2 - 10.1109/IRMMW-THz57677.2023.10299062

DO - 10.1109/IRMMW-THz57677.2023.10299062

M3 - Book chapter

SN - 979-8-3503-3661-0

BT - Proceedings of 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

PB - IEEE

T2 - 48<sup>th</sup> International Conference on Infrared, Millimeter, and Terahertz Waves

Y2 - 17 September 2023 through 22 September 2023

ER -

Imaging of Large-Area Graphene using Terahertz Cross-Correlation Spectroscopy

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