Terahertz Generation Enhanced by Nonlinear Filaments Interaction in Liquids

Boqu He; Junyi Nan; Fengjiang Liu; Shuai Yuan; Min Li; Junsong Peng; Heping Zeng

doi:10.1109/LPT.2019.2927111

Terahertz Generation Enhanced by Nonlinear Filaments Interaction in Liquids

Boqu He, Junyi Nan, Fengjiang Liu, Shuai Yuan, Min Li, Junsong Peng, Heping Zeng^*

^*Corresponding author for this work

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

3 Scopus citations

Abstract

Enhanced terahertz (THz) radiation was observed in liquids via interaction of two noncollinear filaments of ultrashort pulses. As compared with THz generation driven by one filament, the observed enhancement was attributed to asymmetric plasma current due to filament-induced multiple frequency components in liquids. By tuning the relative polarization angles and pulse energies of the interacting filaments, we demonstrated that the interaction of the two filaments gave rise to plasma density modulation and high-intensity laser field in the intersection region, which resulted in blue-shifted supercontinuum generation. The newly generated blue frequency components enhanced asymmetric plasma current when it combined with the fundamental-wave filament at 800 nm, which led to stronger THz generation.

Original language	English
Article number	8756091
Pages (from-to)	1369-1372
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	31
Issue number	16
DOIs	https://doi.org/10.1109/LPT.2019.2927111
State	Published - 15 Aug 2019
Externally published	Yes

Keywords

Amplitude modulation
liquids
terahertz radiation

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10.1109/LPT.2019.2927111

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title = "Terahertz Generation Enhanced by Nonlinear Filaments Interaction in Liquids",

abstract = "Enhanced terahertz (THz) radiation was observed in liquids via interaction of two noncollinear filaments of ultrashort pulses. As compared with THz generation driven by one filament, the observed enhancement was attributed to asymmetric plasma current due to filament-induced multiple frequency components in liquids. By tuning the relative polarization angles and pulse energies of the interacting filaments, we demonstrated that the interaction of the two filaments gave rise to plasma density modulation and high-intensity laser field in the intersection region, which resulted in blue-shifted supercontinuum generation. The newly generated blue frequency components enhanced asymmetric plasma current when it combined with the fundamental-wave filament at 800 nm, which led to stronger THz generation.",

keywords = "Amplitude modulation, liquids, terahertz radiation",

author = "Boqu He and Junyi Nan and Fengjiang Liu and Shuai Yuan and Min Li and Junsong Peng and Heping Zeng",

note = "Publisher Copyright: {\textcopyright} 1989-2012 IEEE.",

year = "2019",

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doi = "10.1109/LPT.2019.2927111",

language = "英语",

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T1 - Terahertz Generation Enhanced by Nonlinear Filaments Interaction in Liquids

AU - He, Boqu

AU - Nan, Junyi

AU - Liu, Fengjiang

AU - Yuan, Shuai

AU - Li, Min

AU - Peng, Junsong

AU - Zeng, Heping

PY - 2019/8/15

Y1 - 2019/8/15

N2 - Enhanced terahertz (THz) radiation was observed in liquids via interaction of two noncollinear filaments of ultrashort pulses. As compared with THz generation driven by one filament, the observed enhancement was attributed to asymmetric plasma current due to filament-induced multiple frequency components in liquids. By tuning the relative polarization angles and pulse energies of the interacting filaments, we demonstrated that the interaction of the two filaments gave rise to plasma density modulation and high-intensity laser field in the intersection region, which resulted in blue-shifted supercontinuum generation. The newly generated blue frequency components enhanced asymmetric plasma current when it combined with the fundamental-wave filament at 800 nm, which led to stronger THz generation.

AB - Enhanced terahertz (THz) radiation was observed in liquids via interaction of two noncollinear filaments of ultrashort pulses. As compared with THz generation driven by one filament, the observed enhancement was attributed to asymmetric plasma current due to filament-induced multiple frequency components in liquids. By tuning the relative polarization angles and pulse energies of the interacting filaments, we demonstrated that the interaction of the two filaments gave rise to plasma density modulation and high-intensity laser field in the intersection region, which resulted in blue-shifted supercontinuum generation. The newly generated blue frequency components enhanced asymmetric plasma current when it combined with the fundamental-wave filament at 800 nm, which led to stronger THz generation.

KW - Amplitude modulation

KW - liquids

KW - terahertz radiation

UR - https://www.scopus.com/pages/publications/85070296062

U2 - 10.1109/LPT.2019.2927111

DO - 10.1109/LPT.2019.2927111

M3 - 文章

AN - SCOPUS:85070296062

SN - 1041-1135

VL - 31

SP - 1369

EP - 1372

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 16

M1 - 8756091

ER -

Terahertz Generation Enhanced by Nonlinear Filaments Interaction in Liquids

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