Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments

Christian Buhl Sørensen; Jérôme Degert; Marc Tondusson; Esben Skovsen; Eric Freysz; Emmanuel Abraham

doi:10.1109/IRMMW-THz.2019.8874322

Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments

Christian Buhl Sørensen, Jérôme Degert, Marc Tondusson, Esben Skovsen, Eric Freysz, Emmanuel Abraham^*

^*Kontaktforfatter

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceabstrakt i proceeding › Forskning › peer review

Abstract

We demonstrate that terahertz generation in a two-color laser filament can exhibit conical or Gaussian far-field distribution depending on the experimental conditions. By measuring the spatial distribution of the THz electric field in the 0–3 THz spectral range, we have shown that the conical emission is likely due to photo-induced carriers in the silicon filter used to block the remaining pump laser pulses. However, the terahertz generation can retrieve a Gaussian spatial distribution by replacing the silicon filter by a ceramic one in which the photo-excitation of charge carrier does not occur.

Originalsprog	Engelsk
Titel	2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Antal sider	2
Forlag	IEEE (Institute of Electrical and Electronics Engineers)
Publikationsdato	sep. 2019
Sider	1-2
Artikelnummer	8874322
ISBN (Elektronisk)	9781538682852
DOI	https://doi.org/10.1109/IRMMW-THz.2019.8874322
Status	Udgivet - sep. 2019
Begivenhed	44th International Conference on Infrared, Millimeter, and Terahertz Waves - Maison de la Chimie, Paris, Frankrig Varighed: 1 sep. 2019 → 6 sep. 2019 http://irmmw-thz2019.org/

Konference

Konference	44th International Conference on Infrared, Millimeter, and Terahertz Waves
Lokation	Maison de la Chimie
Land/Område	Frankrig
By	Paris
Periode	01/09/2019 → 06/09/2019
Internetadresse	http://irmmw-thz2019.org/

Adgang til dokumentet

10.1109/IRMMW-THz.2019.8874322

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Citationsformater

Sørensen, C. B., Degert, J., Tondusson, M., Skovsen, E., Freysz, E., & Abraham, E. (2019). Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments. I 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (s. 1-2). Artikel 8874322 IEEE (Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/IRMMW-THz.2019.8874322

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title = "Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments",

abstract = "We demonstrate that terahertz generation in a two-color laser filament can exhibit conical or Gaussian far-field distribution depending on the experimental conditions. By measuring the spatial distribution of the THz electric field in the 0–3 THz spectral range, we have shown that the conical emission is likely due to photo-induced carriers in the silicon filter used to block the remaining pump laser pulses. However, the terahertz generation can retrieve a Gaussian spatial distribution by replacing the silicon filter by a ceramic one in which the photo-excitation of charge carrier does not occur.",

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note = "44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz ; Conference date: 01-09-2019 Through 06-09-2019",

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Sørensen, CB, Degert, J, Tondusson, M, Skovsen, E, Freysz, E & Abraham, E 2019, Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments. i 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)., 8874322, IEEE (Institute of Electrical and Electronics Engineers), s. 1-2, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, Paris, Frankrig, 01/09/2019. https://doi.org/10.1109/IRMMW-THz.2019.8874322

Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments. / Sørensen, Christian Buhl; Degert, Jérôme; Tondusson, Marc et al.
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE (Institute of Electrical and Electronics Engineers), 2019. s. 1-2 8874322.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceabstrakt i proceeding › Forskning › peer review

TY - ABST

T1 - Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments

AU - Sørensen, Christian Buhl

AU - Degert, Jérôme

AU - Tondusson, Marc

AU - Skovsen, Esben

AU - Freysz, Eric

AU - Abraham, Emmanuel

PY - 2019/9

Y1 - 2019/9

N2 - We demonstrate that terahertz generation in a two-color laser filament can exhibit conical or Gaussian far-field distribution depending on the experimental conditions. By measuring the spatial distribution of the THz electric field in the 0–3 THz spectral range, we have shown that the conical emission is likely due to photo-induced carriers in the silicon filter used to block the remaining pump laser pulses. However, the terahertz generation can retrieve a Gaussian spatial distribution by replacing the silicon filter by a ceramic one in which the photo-excitation of charge carrier does not occur.

AB - We demonstrate that terahertz generation in a two-color laser filament can exhibit conical or Gaussian far-field distribution depending on the experimental conditions. By measuring the spatial distribution of the THz electric field in the 0–3 THz spectral range, we have shown that the conical emission is likely due to photo-induced carriers in the silicon filter used to block the remaining pump laser pulses. However, the terahertz generation can retrieve a Gaussian spatial distribution by replacing the silicon filter by a ceramic one in which the photo-excitation of charge carrier does not occur.

UR - http://www.scopus.com/inward/record.url?scp=85074697207&partnerID=8YFLogxK

U2 - 10.1109/IRMMW-THz.2019.8874322

DO - 10.1109/IRMMW-THz.2019.8874322

M3 - Conference abstract in proceeding

SP - 1

EP - 2

BT - 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

PB - IEEE (Institute of Electrical and Electronics Engineers)

T2 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves

Y2 - 1 September 2019 through 6 September 2019

ER -

Sørensen CB, Degert J, Tondusson M, Skovsen E, Freysz E, Abraham E. Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments. I 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE (Institute of Electrical and Electronics Engineers). 2019. s. 1-2. 8874322 doi: 10.1109/IRMMW-THz.2019.8874322

Conical vs Gaussian Terahertz Emission from Two-Color Laser-Induced Air Plasma Filaments

Abstract

Konference

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