Title :
Laser-induced ionization of air in the presence of preionization
Author :
Tyagi, Rakesh Kumar ; Rampal, V.V. ; Bhar, Gopal C.
Author_Institution :
Defence Electron. Appl. Lab., Dehradun, India
fDate :
4/1/1988 12:00:00 AM
Abstract :
Ionization of air at different pressures is studied for the following situations: (1) a spark gap acting as a preionizer alone, (2) a preionizer with a pulsed CO/sub 2/ laser, (3) a preionizer with a CW CO/sub 2/ laser, (4) a preionizer with a Q-switched Nd:YAG laser, and (5) and a Nd:YAG laser with a CO/sub 2/ laser. Results are quantified and analyzed with respect to some available data.<>
Keywords :
air; ionisation of gases; laser beam effects; photoionisation; sparks; CO/sub 2/; CO/sub 2/ laser; CW CO/sub 2/ laser; Nd:YAG laser; Q-switched Nd:YAG laser; YAG:Nd; YAl5O12:Nd; air; laser induced ionisation; preionization; pressures; pulsed CO/sub 2/ laser; spark gap; Electric breakdown; Electrodes; Gas lasers; Ionization; Laser theory; Neodymium; Optical pulses; Probes; Quantum cascade lasers; Sparks;
Journal_Title :
Quantum Electronics, IEEE Journal of
