Filamentation-assisted plasma lifetime measurements in atomic and molecular gases via third-harmonic enhancement

authored by
Christoph Jusko, Abhishek Sridhar, Elisa Appi, Liping Shi, Uwe Morgner, Milutin Kovacev
Abstract

We present lifetime measurements of femtosecond laser-induced plasma in atomic and molecular gases via enhanced third-harmonic radiation from a filament. So far, only the plasma lifetime of air has been measured with this approach. We report and analyze the first measurements for other gases, including, to the best of our knowledge, the first-ever documented temporal evolution measurement of femtosecond laser-induced plasma in helium. We show that the temporal plasma evolution is imprinted directly in our measurement traces without the need of any further assumptions or data treatment.

Organisation(s)
Institute of Quantum Optics
QuantumFrontiers
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Hannover Centre for Optical Technologies (HOT)
External Organisation(s)
Laser Zentrum Hannover e.V. (LZH)
Type
Article
Journal
Journal of the Optical Society of America B: Optical Physics
Volume
36
Pages
3505-3513
No. of pages
9
ISSN
0740-3224
Publication date
12.2019
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics
Electronic version(s)
https://doi.org/10.1364/josab.36.003505 (Access: Closed)