Analysis of plasma channels in mm-scale plasmas formed by high intensity laser beams

9th International Conference on Inertial Fusion Sciences and Applications

Murakami, R.^1 ; Habara, H.^1 ; Ivancic, S.^2,3 ; Anderson, K.^2 ; Haberberger, D.^2 ; Iwawaki, T.^1 ; Sakagami, H.^4 ; Stoeckl, C.^2 ; Theobald, W.^2 ; Uematsu, Y.^1 ; Tanaka, K.A.^1

Osaka University, Suita, Osaka, Japan^1

LLE, U. Rochester, Rochester

NY, United States^2

Dep. Mech. Eng., U. Rochester, Rochester

NY, United States^3

NIFS, Toki, Gifu, Japan^4

关键词: Angular filters;    Channel formation;    Critical density;    High intensity;    High intensity laser beams;    Plasma channel;    Ray-tracing technique;    Refractometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/717/1/012039/pdf
DOI  :  10.1088/1742-6596/717/1/012039

来源: IOP

【 摘 要 】

A plasma channel created by a high intensity infrared laser beam was observed in a long scale-length plasma (L ∼ 240 μm) with the angular filter refractometry technique, which indicated a stable channel formation up to the critical density. We analyzed the observed plasma channel using a rigorous ray-tracing technique, which provides a deep understanding of the evolution of the channel formation.