X-shaped third harmonic generated by ultrashort infrared pulse filamentation in air

Han Xu; Hui Xiong; Ruxin Li; Ya Cheng; Zhizhan Xu; See Leang Chin

doi:10.1063/1.2830017

X-shaped third harmonic generated by ultrashort infrared pulse filamentation in air

Han Xu^*
, Hui Xiong
, Ruxin Li
, Ya Cheng
, Zhizhan Xu
, See Leang Chin

^*Corresponding author for this work

CAS - Shanghai Institute of Optics and Fine Mechanics
Université Laval

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

25 Scopus citations

Abstract

The authors report the measurement of the angularly resolved spectrum of the third harmonic generated in a femtosecond filament in air and its evolution with increasing pump power. Pumped by a focused infrared ultrashort pulse with a carrier wavelength of 1270 nm, a pulse duration of ∼20 fs, and pulse energy up to 487 μJ, the generated third harmonic is composed of an on-axis emission and a conical ring emission. When the pump power is sufficiently high, angularly resolved spectra with significant X-like feature could be observed, indicating the formation of nonlinear X wave at third harmonic.

Original language	English
Article number	011111
Journal	Applied Physics Letters
Volume	92
Issue number	1
DOIs	https://doi.org/10.1063/1.2830017
State	Published - 2008
Externally published	Yes

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title = "X-shaped third harmonic generated by ultrashort infrared pulse filamentation in air",

abstract = "The authors report the measurement of the angularly resolved spectrum of the third harmonic generated in a femtosecond filament in air and its evolution with increasing pump power. Pumped by a focused infrared ultrashort pulse with a carrier wavelength of 1270 nm, a pulse duration of ∼20 fs, and pulse energy up to 487 μJ, the generated third harmonic is composed of an on-axis emission and a conical ring emission. When the pump power is sufficiently high, angularly resolved spectra with significant X-like feature could be observed, indicating the formation of nonlinear X wave at third harmonic.",

author = "Han Xu and Hui Xiong and Ruxin Li and Ya Cheng and Zhizhan Xu and Chin, \{See Leang\}",

year = "2008",

doi = "10.1063/1.2830017",

language = "英语",

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T1 - X-shaped third harmonic generated by ultrashort infrared pulse filamentation in air

AU - Xu, Han

AU - Xiong, Hui

AU - Li, Ruxin

AU - Cheng, Ya

AU - Xu, Zhizhan

AU - Chin, See Leang

PY - 2008

Y1 - 2008

N2 - The authors report the measurement of the angularly resolved spectrum of the third harmonic generated in a femtosecond filament in air and its evolution with increasing pump power. Pumped by a focused infrared ultrashort pulse with a carrier wavelength of 1270 nm, a pulse duration of ∼20 fs, and pulse energy up to 487 μJ, the generated third harmonic is composed of an on-axis emission and a conical ring emission. When the pump power is sufficiently high, angularly resolved spectra with significant X-like feature could be observed, indicating the formation of nonlinear X wave at third harmonic.

AB - The authors report the measurement of the angularly resolved spectrum of the third harmonic generated in a femtosecond filament in air and its evolution with increasing pump power. Pumped by a focused infrared ultrashort pulse with a carrier wavelength of 1270 nm, a pulse duration of ∼20 fs, and pulse energy up to 487 μJ, the generated third harmonic is composed of an on-axis emission and a conical ring emission. When the pump power is sufficiently high, angularly resolved spectra with significant X-like feature could be observed, indicating the formation of nonlinear X wave at third harmonic.

UR - https://www.scopus.com/pages/publications/38049052418

U2 - 10.1063/1.2830017

DO - 10.1063/1.2830017

M3 - 文章

AN - SCOPUS:38049052418

SN - 0003-6951

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 1

M1 - 011111

ER -

X-shaped third harmonic generated by ultrashort infrared pulse filamentation in air

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