Air-Biased Balanced Detection of THz Waveforms

Alexander Holm Ohrt; Olivér Nagy; Robin Löscher; Clara J. Saraceno; Binbin Zhou; Peter Uhd Jepsen

doi:10.1109/IRMMW-THz60956.2024.10697837

Air-Biased Balanced Detection of THz Waveforms

Alexander Holm Ohrt^*
, Olivér Nagy
, Robin Löscher
, Clara J. Saraceno
, Binbin Zhou
, Peter Uhd Jepsen

^*Corresponding author for this work

Ruhr University Bochum

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

Abstract

We demonstrate a novel balanced air-biased coherent detection scheme for capturing ultrabroadband terahertz waveforms. Our method offers improved speed and reduced noise compared to conventional air-biased coherent detection. By rotating the bias electrodes by 90° relative to a conventional scheme, we achieve balanced detection without bias modulation, signal generators, or lock-in amplifiers. Experimental results demonstrate significant noise reduction and the capability for high-speed waveform acquisition at the full repetition rate of the laser system, making it ideal for applications requiring rapid and precise terahertz measurements.

Original language	English
Title of host publication	Proceedings of 49^th International Conference on Infrared, Millimeter, and Terahertz Waves
Publisher	IEEE
Publication date	2024
ISBN (Electronic)	9798350370324
DOIs	https://doi.org/10.1109/IRMMW-THz60956.2024.10697837
Publication status	Published - 2024
Event	49^th International Conference on Infrared, Millimeter, and Terahertz Waves - University Club of Western Australia, Perth, Australia Duration: 1 Sept 2024 → 6 Sept 2024

Conference

Conference	49^th International Conference on Infrared, Millimeter, and Terahertz Waves
Location	University Club of Western Australia
Country/Territory	Australia
City	Perth
Period	01/09/2024 → 06/09/2024

Keywords

ABCD
Balanced detection
Coherent detection
THz-TDS

Access to Document

10.1109/IRMMW-THz60956.2024.10697837

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Cite this

@inproceedings{ee8d18facfc94e1394bdb53a523eb35f,

title = "Air-Biased Balanced Detection of THz Waveforms",

abstract = "We demonstrate a novel balanced air-biased coherent detection scheme for capturing ultrabroadband terahertz waveforms. Our method offers improved speed and reduced noise compared to conventional air-biased coherent detection. By rotating the bias electrodes by 90° relative to a conventional scheme, we achieve balanced detection without bias modulation, signal generators, or lock-in amplifiers. Experimental results demonstrate significant noise reduction and the capability for high-speed waveform acquisition at the full repetition rate of the laser system, making it ideal for applications requiring rapid and precise terahertz measurements.",

keywords = "ABCD, Balanced detection, Coherent detection, THz-TDS",

author = "Ohrt, \{Alexander Holm\} and Oliv{\'e}r Nagy and Robin L{\"o}scher and Saraceno, \{Clara J.\} and Binbin Zhou and Jepsen, \{Peter Uhd\}",

note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 49<sup>th</sup> International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW–THz 2024 ; Conference date: 01-09-2024 Through 06-09-2024",

year = "2024",

doi = "10.1109/IRMMW-THz60956.2024.10697837",

language = "English",

booktitle = "Proceedings of 49th International Conference on Infrared, Millimeter, and Terahertz Waves",

publisher = "IEEE",

address = "United States",

}

Ohrt, AH, Nagy, O, Löscher, R, Saraceno, CJ, Zhou, B & Jepsen, PU 2024, Air-Biased Balanced Detection of THz Waveforms. in Proceedings of 49^th International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, 49^th International Conference on Infrared, Millimeter, and Terahertz Waves, Perth, Western Australia, Australia, 01/09/2024. https://doi.org/10.1109/IRMMW-THz60956.2024.10697837

TY - GEN

T1 - Air-Biased Balanced Detection of THz Waveforms

AU - Ohrt, Alexander Holm

AU - Nagy, Olivér

AU - Löscher, Robin

AU - Saraceno, Clara J.

AU - Zhou, Binbin

AU - Jepsen, Peter Uhd

PY - 2024

Y1 - 2024

N2 - We demonstrate a novel balanced air-biased coherent detection scheme for capturing ultrabroadband terahertz waveforms. Our method offers improved speed and reduced noise compared to conventional air-biased coherent detection. By rotating the bias electrodes by 90° relative to a conventional scheme, we achieve balanced detection without bias modulation, signal generators, or lock-in amplifiers. Experimental results demonstrate significant noise reduction and the capability for high-speed waveform acquisition at the full repetition rate of the laser system, making it ideal for applications requiring rapid and precise terahertz measurements.

AB - We demonstrate a novel balanced air-biased coherent detection scheme for capturing ultrabroadband terahertz waveforms. Our method offers improved speed and reduced noise compared to conventional air-biased coherent detection. By rotating the bias electrodes by 90° relative to a conventional scheme, we achieve balanced detection without bias modulation, signal generators, or lock-in amplifiers. Experimental results demonstrate significant noise reduction and the capability for high-speed waveform acquisition at the full repetition rate of the laser system, making it ideal for applications requiring rapid and precise terahertz measurements.

KW - ABCD

KW - Balanced detection

KW - Coherent detection

KW - THz-TDS

U2 - 10.1109/IRMMW-THz60956.2024.10697837

DO - 10.1109/IRMMW-THz60956.2024.10697837

M3 - Article in proceedings

AN - SCOPUS:85207197143

BT - Proceedings of 49th International Conference on Infrared, Millimeter, and Terahertz Waves

PB - IEEE

T2 - 49<sup>th</sup> International Conference on Infrared, Millimeter, and Terahertz Waves

Y2 - 1 September 2024 through 6 September 2024

ER -

Air-Biased Balanced Detection of THz Waveforms

Abstract

Conference

Keywords

Access to Document

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