[PDF]    http://dx.doi.org/10.3952/lithjphys.45105

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 45, 37–42 (2005)


SMALL SCALE LASER-TRIGGERED ELECTRICAL DISCHARGES AND THEIR APPLICATION TO CHARACTERIZATION OF PLASMA CHANNEL INDUCED BY LIGHT FILAMENTS
G. Tamošauskas, L. Šaulys, A. Dubietis, and A. Piskarskas
Department of Quantum Electronics, Vilnius University, Saulėtekio 9, LT-01222 Vilnius, Lithuania
E-mail: audrius.dubietis@ff.vu.lt

Received 7 January 2005

We experimentally investigate triggering and guiding of kilovolt electrical discharges in air over short (few centimetre) gaps triggered by means of 1 ps light filaments at 527 nm. A method of direct measurement of free electron density along the plasma channel is proposed.
Keywords: self-focusing, light filament, ionization, laser-triggered discharge
PACS: 42.65.Jx, 52.80.–s


MAŽŲ MATMENŲ LAZERIU SUKELTI ELEKTROS IŠLYDŽIAI IR JŲ TAIKYMAS ŠVIESOS GIJŲ SUKURIAMIEMS PLAZMOS KANALAMS APIBŪDINTI
G. Tamošauskas, L. Šaulys, A. Dubietis, A. Piskarskas
Vilniaus universitetas, Vilnius, Lietuva

Eksperimentiškai tirti mažo atstumo kilovoltiniai elektros išlydžiai ore, sužadinami ir valdomi pikosekundinėmis šviesos gijomis. Pasiūlytas tiesioginis metodas, kaip, taikant šviesa indukuotus elektros išlydžius, galima nustatyti laisvųjų elektronų, sukuriamų šviesos gijai sklindant ore, tankį išilgai sklidimo krypties.


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