Triggering and guiding electric discharge by a train of ultrashort UV pulses and a long UV pulse emitted by a hybrid Ti:Sapphire-KrF laser facility

Andrey A. Ionin; Sergej I. Kudryashov; Alexsej O. Levchenko; Leonid V. Seleznev; Aleksei V. Shutov; Dmitry V. Sinitsyn; Igor V. Smetanin; Nikolay N. Ustinovskiy; Vladimir D. Zvorykin

doi:10.1117/12.966423

8 November 2012 Triggering and guiding electric discharge by a train of ultrashort UV pulses and a long UV pulse emitted by a hybrid Ti:Sapphire-KrF laser facility

Andrey A. Ionin, Sergej I. Kudryashov, Alexsej O. Levchenko, Leonid V. Seleznev, Aleksei V. Shutov, Dmitry V. Sinitsyn, Igor V. Smetanin, Nikolay N. Ustinovskiy, Vladimir D. Zvorykin

Author Affiliations +

Proceedings Volume 8547, High-Power Lasers 2012: Technology and Systems; 85470G (2012) https://doi.org/10.1117/12.966423
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

Abstract

Non-self-sustained electric discharge and electric breakdown were triggered and guided by a train of ultrashort sub-TW ultraviolet (UV) pulses overlapped with a long free-running UV pulse of a hybrid Ti:Sapphire - KrF laser facility. Photocurrent sustained by this train is two orders of magnitude higher, and electric breakdown distance is twice longer than those for the discharge triggered by the long UV pulse only. When transporting the laser radiation over the long distance, UV filaments of ~ 100 m length were observed.

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Andrey A. Ionin, Sergej I. Kudryashov, Alexsej O. Levchenko, Leonid V. Seleznev, Aleksei V. Shutov, Dmitry V. Sinitsyn, Igor V. Smetanin, Nikolay N. Ustinovskiy, and Vladimir D. Zvorykin "Triggering and guiding electric discharge by a train of ultrashort UV pulses and a long UV pulse emitted by a hybrid Ti:Sapphire-KrF laser facility", Proc. SPIE 8547, High-Power Lasers 2012: Technology and Systems, 85470G (8 November 2012); https://doi.org/10.1117/12.966423

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