Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission

Christian B. Sorensen; Leo Guiramand; A. Minasyan; C. Lacroix; Jerome Degert; Marc Tondusson; Esben Skovsen; Eric Freysz; Emmanuel Abraham

doi:10.1109/IRMMW-THz46771.2020.9370560

Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission

Christian B. Sorensen, Leo Guiramand, A. Minasyan, C. Lacroix, Jerome Degert, Marc Tondusson, Esben Skovsen, Eric Freysz, Emmanuel Abraham

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

We demonstrate that the far-field terahertz beam generated from a Ti:Sapphire two-color laser-induced filament can exhibit a conical or a Gaussian distribution depending on the filtering experimental conditions. Using a 2D electro-optic detection, we provide the first clear evidence that the conical emission in the 0.2-2.6 THz spectral range is due to photo-induced carriers in the silicon filter typically used to block the remaining pump laser light. The low-frequency terahertz beam retrieves an almost Gaussian spatial distribution when the silicon filter is preceded by a large bandgap ceramic filter, which stops the pump beam, preventing carriers generation in the silicon filter.

Original language	English
Title of host publication	2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Number of pages	2
Publisher	IEEE
Publication date	8 Nov 2020
Pages	67-68
Article number	9370560
ISBN (Print)	978-1-7281-6621-6
ISBN (Electronic)	978-1-7281-6620-9
DOIs	https://doi.org/10.1109/IRMMW-THz46771.2020.9370560
Publication status	Published - 8 Nov 2020
Event	45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 - Virtual, Buffalo, United States Duration: 8 Nov 2020 → 13 Nov 2020

Conference

Conference	45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Country/Territory	United States
City	Virtual, Buffalo
Period	08/11/2020 → 13/11/2020
Sponsor	ACST, et al., IEEE, Office of Naval Research Science and Technology (ONR), The Optical Society (OSA), University at Buffalo (UB)

Series	International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume	2020-November
ISSN	2162-2027

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

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10.1109/IRMMW-THz46771.2020.9370560

Cite this

Sorensen, C. B., Guiramand, L., Minasyan, A., Lacroix, C., Degert, J., Tondusson, M., Skovsen, E., Freysz, E., & Abraham, E. (2020). Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission. In 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 (pp. 67-68). [9370560] IEEE. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz Vol. 2020-November https://doi.org/10.1109/IRMMW-THz46771.2020.9370560

Sorensen, Christian B. ; Guiramand, Leo ; Minasyan, A. et al. / Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission. 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. IEEE, 2020. pp. 67-68 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, Vol. 2020-November).

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title = "Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission",

abstract = "We demonstrate that the far-field terahertz beam generated from a Ti:Sapphire two-color laser-induced filament can exhibit a conical or a Gaussian distribution depending on the filtering experimental conditions. Using a 2D electro-optic detection, we provide the first clear evidence that the conical emission in the 0.2-2.6 THz spectral range is due to photo-induced carriers in the silicon filter typically used to block the remaining pump laser light. The low-frequency terahertz beam retrieves an almost Gaussian spatial distribution when the silicon filter is preceded by a large bandgap ceramic filter, which stops the pump beam, preventing carriers generation in the silicon filter.",

author = "Sorensen, {Christian B.} and Leo Guiramand and A. Minasyan and C. Lacroix and Jerome Degert and Marc Tondusson and Esben Skovsen and Eric Freysz and Emmanuel Abraham",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 ; Conference date: 08-11-2020 Through 13-11-2020",

year = "2020",

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doi = "10.1109/IRMMW-THz46771.2020.9370560",

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Sorensen, CB, Guiramand, L, Minasyan, A, Lacroix, C, Degert, J, Tondusson, M, Skovsen, E, Freysz, E & Abraham, E 2020, Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission. in 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020., 9370560, IEEE, International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, vol. 2020-November, pp. 67-68, 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020, Virtual, Buffalo, United States, 08/11/2020. https://doi.org/10.1109/IRMMW-THz46771.2020.9370560

Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission. / Sorensen, Christian B.; Guiramand, Leo; Minasyan, A. et al.

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. IEEE, 2020. p. 67-68 9370560 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, Vol. 2020-November).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission

AU - Sorensen, Christian B.

AU - Guiramand, Leo

AU - Minasyan, A.

AU - Lacroix, C.

AU - Degert, Jerome

AU - Tondusson, Marc

AU - Skovsen, Esben

AU - Freysz, Eric

AU - Abraham, Emmanuel

PY - 2020/11/8

Y1 - 2020/11/8

N2 - We demonstrate that the far-field terahertz beam generated from a Ti:Sapphire two-color laser-induced filament can exhibit a conical or a Gaussian distribution depending on the filtering experimental conditions. Using a 2D electro-optic detection, we provide the first clear evidence that the conical emission in the 0.2-2.6 THz spectral range is due to photo-induced carriers in the silicon filter typically used to block the remaining pump laser light. The low-frequency terahertz beam retrieves an almost Gaussian spatial distribution when the silicon filter is preceded by a large bandgap ceramic filter, which stops the pump beam, preventing carriers generation in the silicon filter.

AB - We demonstrate that the far-field terahertz beam generated from a Ti:Sapphire two-color laser-induced filament can exhibit a conical or a Gaussian distribution depending on the filtering experimental conditions. Using a 2D electro-optic detection, we provide the first clear evidence that the conical emission in the 0.2-2.6 THz spectral range is due to photo-induced carriers in the silicon filter typically used to block the remaining pump laser light. The low-frequency terahertz beam retrieves an almost Gaussian spatial distribution when the silicon filter is preceded by a large bandgap ceramic filter, which stops the pump beam, preventing carriers generation in the silicon filter.

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U2 - 10.1109/IRMMW-THz46771.2020.9370560

DO - 10.1109/IRMMW-THz46771.2020.9370560

M3 - Article in proceeding

AN - SCOPUS:85103169443

SN - 978-1-7281-6621-6

T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz

SP - 67

EP - 68

BT - 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020

PB - IEEE

T2 - 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020

Y2 - 8 November 2020 through 13 November 2020

ER -

Sorensen CB, Guiramand L, Minasyan A, Lacroix C, Degert J, Tondusson M et al. Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission. In 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. IEEE. 2020. p. 67-68. 9370560. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, Vol. 2020-November). doi: 10.1109/IRMMW-THz46771.2020.9370560

Influence of photo-excited charge carriers in silicon wafer in a two-color laser-induced air plasma terahertz emission

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