Diagnosis of femtosecond plasma filament by channeling microwaves along the filament
- School of Science, Changchun University of Science and Technology, Changchun 130022 (China)
We introduce a simple, fast, and non-intrusive experimental method to obtain the basic parameters of femtosecond laser-generated plasma filament. The method is based on the channeling of microwaves along both a plasma filament and a well-defined conducting wire. By comparing the detected microwaves that propagate along the plasma filament and a copper wire with known conductivity and spatial dimension, the basic parameters of the plasma filament can be easily obtained. As a result of the possibility of channeling microwave radiation along the plasma filament, we were then able to obtain the plasma density distribution along the filament length.
- OSTI ID:
- 22162951
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 20 Vol. 102; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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