Frequency blue shift of terahertz radiation from femtosecond laser induced air plasmas

Zhen Zhang; Yanping Chen; Zhelin Zhang; Tianhao Xia; Jiayang Zhang; Zhengming Sheng

doi:10.1007/s00340-020-07566-6

Frequency blue shift of terahertz radiation from femtosecond laser induced air plasmas

Zhen Zhang, Yanping Chen, Zhelin Zhang, Tianhao Xia, Jiayang Zhang, Zhengming Sheng

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

Abstract

The peak frequency of the terahertz radiation generated from the femtosecond laser-induced air plasmas is blue shifted with the increased second harmonics intensity when a high voltage is added upon the air plasmas. This blue shift is the result of the DC-biased field from the high voltage plus the AC-biased field from the second harmonics, indicating that this terahertz radiation frequency peak is tunable by varying the two field components. This tunable frequency peak is significant to various applications such as remote sensing and material characterization.

Original language	English
Article number	11
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	127
Early online date	8 Jan 2021
DOIs	https://doi.org/10.1007/s00340-020-07566-6
Publication status	E-pub ahead of print - 8 Jan 2021

Keywords

terahertz radiation
emtosecond laser-induced air plasmas
high voltage

Access to Document

10.1007/s00340-020-07566-6

Link to publication in Scopus

Embargoed Document

Zhang-etal-APB-LO-2021-Frequency-blue-shift-of-terahertz-radiation
Accepted author manuscript, 1.04 MB
Embargo ends: 8/01/22

Cite this

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title = "Frequency blue shift of terahertz radiation from femtosecond laser induced air plasmas",

abstract = "The peak frequency of the terahertz radiation generated from the femtosecond laser-induced air plasmas is blue shifted with the increased second harmonics intensity when a high voltage is added upon the air plasmas. This blue shift is the result of the DC-biased field from the high voltage plus the AC-biased field from the second harmonics, indicating that this terahertz radiation frequency peak is tunable by varying the two field components. This tunable frequency peak is significant to various applications such as remote sensing and material characterization.",

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author = "Zhen Zhang and Yanping Chen and Zhelin Zhang and Tianhao Xia and Jiayang Zhang and Zhengming Sheng",

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T1 - Frequency blue shift of terahertz radiation from femtosecond laser induced air plasmas

AU - Zhang, Zhen

AU - Chen, Yanping

AU - Zhang, Zhelin

AU - Xia, Tianhao

AU - Zhang, Jiayang

AU - Sheng, Zhengming

PY - 2021/1/8

Y1 - 2021/1/8

N2 - The peak frequency of the terahertz radiation generated from the femtosecond laser-induced air plasmas is blue shifted with the increased second harmonics intensity when a high voltage is added upon the air plasmas. This blue shift is the result of the DC-biased field from the high voltage plus the AC-biased field from the second harmonics, indicating that this terahertz radiation frequency peak is tunable by varying the two field components. This tunable frequency peak is significant to various applications such as remote sensing and material characterization.

AB - The peak frequency of the terahertz radiation generated from the femtosecond laser-induced air plasmas is blue shifted with the increased second harmonics intensity when a high voltage is added upon the air plasmas. This blue shift is the result of the DC-biased field from the high voltage plus the AC-biased field from the second harmonics, indicating that this terahertz radiation frequency peak is tunable by varying the two field components. This tunable frequency peak is significant to various applications such as remote sensing and material characterization.

KW - terahertz radiation

KW - emtosecond laser-induced air plasmas

KW - high voltage

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JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

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