Title :
Structure formation of atmospheric millimeter wave breakdown on non-gaussian beam
Author :
Oda, Yasuhisa ; Yamaguchi, Toshikazu ; Kajiwara, Ken ; Takahashi, Koji ; Kasugai, Atsushi ; Komurasaki, Kimiya ; Sakamoto, Keishi
Author_Institution :
Japan Atomic Energy Agency, Naka, Japan
Abstract :
The structure formation of atmospheric millimeter wave breakdown plasma was observed. The breakdown plasma on a high power Gaussian and the flat beam was compared to each other. The propagation velocity of plasma head and shock wave pressure was measured. The propagation velocity had dependence on peak power density. On the other hand, the stronger shock wave was detected by the flat beam because of greater plasma absorption of beam power which had dependence on the beam profile.
Keywords :
atmospheric electromagnetic wave propagation; atmospheric ionisation; electric breakdown; millimetre wave propagation; plasma electromagnetic wave propagation; atmospheric millimeter wave breakdown plasma; high power Gaussian; nonGaussian beam; peak power density; plasma absorption; plasma head; propagation velocity; shock wave pressure; structure formation; Atmospheric measurements; Atmospheric waves; Electric breakdown; Millimeter wave measurements; Millimeter wave propagation; Particle beams; Plasma density; Plasma measurements; Plasma waves; Shock waves;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324972
