The temporal-spatial evolution of electron dynamics induced by femtosecond double pulses

Changji Pan; Lan Jiang; Jingya Sun; Qingsong Wang; Feifei Wang; Yongfeng Lu

doi:10.7567/1347-4065/ab00a8

The temporal-spatial evolution of electron dynamics induced by femtosecond double pulses

Changji Pan, Lan Jiang, Jingya Sun, Qingsong Wang, Feifei Wang, Yongfeng Lu

Electrical & Computer Engineering

Research output: Contribution to journal › Article

3 Scopus citations

Abstract

The temporal and spatial electron dynamics were investigated under irradiation of temporally shaped femtosecond double pulses. Filament split was observed upon arrival of the second pulse, which was attributed to the emergence of transient high-reflective surface induced by the first pulse. The electron density analysis showed that the total deposition energy of double pulses case was generally higher than that of single pulse case. Particularly, the maximum deposition energy was obtained at 350 fs separation time of double pulses. The results of our experiment demonstrated optimization of energy deposition efficiency by temporally shaping laser pulses, which will benefit the fabrication process.

Original language	English (US)
Article number	030901
Journal	Japanese Journal of Applied Physics
Volume	58
Issue number	3
DOIs	https://doi.org/10.7567/1347-4065/ab00a8
State	Published - Mar 1 2019

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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abstract = "The temporal and spatial electron dynamics were investigated under irradiation of temporally shaped femtosecond double pulses. Filament split was observed upon arrival of the second pulse, which was attributed to the emergence of transient high-reflective surface induced by the first pulse. The electron density analysis showed that the total deposition energy of double pulses case was generally higher than that of single pulse case. Particularly, the maximum deposition energy was obtained at 350 fs separation time of double pulses. The results of our experiment demonstrated optimization of energy deposition efficiency by temporally shaping laser pulses, which will benefit the fabrication process.",

author = "Changji Pan and Lan Jiang and Jingya Sun and Qingsong Wang and Feifei Wang and Yongfeng Lu",

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AU - Pan, Changji

AU - Jiang, Lan

AU - Sun, Jingya

AU - Wang, Qingsong

AU - Wang, Feifei

AU - Lu, Yongfeng

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AB - The temporal and spatial electron dynamics were investigated under irradiation of temporally shaped femtosecond double pulses. Filament split was observed upon arrival of the second pulse, which was attributed to the emergence of transient high-reflective surface induced by the first pulse. The electron density analysis showed that the total deposition energy of double pulses case was generally higher than that of single pulse case. Particularly, the maximum deposition energy was obtained at 350 fs separation time of double pulses. The results of our experiment demonstrated optimization of energy deposition efficiency by temporally shaping laser pulses, which will benefit the fabrication process.

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