Measurement of delayed fluorescence in N2+ with streak camera

Using a streak camera, we directly measure time- and space-resolved dynamics of N2+ emission from a self-seeded filament. We observe characteristic signatures of superfluorescence even under ambient conditions and show that the timing of the emitted light varies along the length of the filament. The...

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Bibliographic Details
Published in:arXiv.org 2020-01
Main Authors: Rastegari, Ali, Diels, Jean-Claude, Liu, Lee R, Arissian, Ladan
Format: Article
Language:English
Subjects:
Cameras
Filaments
Fluorescence
Light emission
Streak cameras
Superfluorescence
Online Access:Get full text
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Summary:Using a streak camera, we directly measure time- and space-resolved dynamics of N2+ emission from a self-seeded filament. We observe characteristic signatures of superfluorescence even under ambient conditions and show that the timing of the emitted light varies along the length of the filament. These effects must be taken into consideration for accurate modelling of light filaments in air, and can be exploited to engineer the temporal profile of light emission in air lasing.
ISSN:2331-8422