Diagnosis of femtosecond plasma filament by channeling microwaves along the filament

Journal Article · Mon May 20 00:00:00 EDT 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4807434· OSTI ID:22162951

Alshershby, Mostafa; Ren, Yu; Qin, Jiang; Hao, Zuoqiang; Lin, Jingquan ^[1]

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1. 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, Vol. 102, Issue 20; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHANNELING
COMPARATIVE EVALUATIONS
COPPER
DISTRIBUTION
FILAMENTS
LASER RADIATION
LIGHT TRANSMISSION
MICROWAVE RADIATION
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA FILAMENT