Compact 180-kV Marx generator triggered in atmospheric air by femtosecond laser filaments
نویسندگان
چکیده
منابع مشابه
Optical breakdown of air triggered by femtosecond laser filaments
Experiments on gas breakdown by powerful optical pulses date back to the early days of lasers. The following development resulted in the generation of dense plasma columns up to several tens of meters in length. Pulsed neodymium-glass and CO2 lasers used in these demonstrations had pulse energies of several hundred Joules. Optical breakdown with high-energy nanosecond (or longer) laser pulses i...
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Short lived plasma channels generated through filamentation of femtosecond laser pulses in air can be revived after several milliseconds by a delayed nanosecond pulse. Electrons initially ionized from oxygen molecules and subsequently captured by neutral oxygen molecules provide the long-lived reservoir of low affinity allowing this process. A Bessel-like nanosecond-duration laser beam can easi...
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The interaction of two light filaments propagating in air is simulated. Simulations show that the interaction of the two light filaments displays interesting features such as attraction, fusion, repulsion, and spiral propagation, depending on the relative phase shift and the crossing angle between them. A long and stable channel can be formed by fusing two in-phase light filaments. The channel ...
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The spatial evolution of plasma filaments in air induced by femtosecond laser pulses is investigated experimentally. Several major filaments and small scaled additional filaments are detected in the plasma channel. The complicated interaction process of filaments as splitting, fusion and spreading is observed. The major filaments propagate stably, and the small scaled additional filaments can b...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2014
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4868227