Triggering and guiding of megavolt discharges by laser-induced filaments under rain conditions
2004; American Institute of Physics; Volume: 85; Issue: 23 Linguagem: Inglês
10.1063/1.1829165
ISSN1520-8842
AutoresRoland Ackermann, K. Stelmaszczyk, Philipp Rohwetter, G. Méjean, Estelle Salmon, Jia Yu, Jérôme Kasparian, G. Méchain, V. Bergmann, S. Schäper, Bruno Weise, T. Kumm, K. Rethmeier, W. Kalkner, L. Wöste, Jean‐Pierre Wolf,
Tópico(s)Lightning and Electromagnetic Phenomena
ResumoWe demonstrate laser control of high-voltage discharges over a gap of 1.2 m filled with a dense water cloud. Self-guided filaments generated by ultrashort laser pulses are transmitted through the cloud and ionize a continuous plasma channel. The cloud typically reduces the discharge probability in given experimental conditions by 30%, but has almost no influence on the threshold required to trigger single discharge events, both in electrical field and laser energy. This result is favorable for real-scale lightning control applications.
Referência(s)