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Direct observation of laser guided corona discharges

Laser based lightning control holds a promising way to solve the problem of the long standing disaster of lightning strikes. But it is a challenging project due to insufficient understanding of the interaction between laser plasma channel and high voltage electric filed. In this work, a direct obser...

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Detalles Bibliográficos
Autores principales: Wang, Tie-Jun, Wei, Yingxia, Liu, Yaoxiang, Chen, Na, Liu, Yonghong, Ju, Jingjing, Sun, Haiyi, Wang, Cheng, Lu, Haihe, Liu, Jiansheng, Chin, See Leang, Li, Ruxin, Xu, Zhizhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4683528/
https://www.ncbi.nlm.nih.gov/pubmed/26679271
http://dx.doi.org/10.1038/srep18681
Descripción
Sumario:Laser based lightning control holds a promising way to solve the problem of the long standing disaster of lightning strikes. But it is a challenging project due to insufficient understanding of the interaction between laser plasma channel and high voltage electric filed. In this work, a direct observation of laser guided corona discharge is reported. Laser filament guided streamer and leader types of corona discharges were observed. An enhanced ionization took place in the leader (filament) through the interaction with the high voltage discharging field. The fluorescence lifetime of laser filament guided corona discharge was measured to be several microseconds, which is 3 orders of magnitude longer than the fluorescence lifetime of laser filaments. This work could be advantageous towards a better understanding of laser assisted leader development in the atmosphere.