Effect of photon density with varying transverse electro-magnetic modes in laser-guided discharges |
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| Authors: | Dong-Hoon Lee Hee-Je Kim Jung-Soo Cho |
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| Institution: | Department of Electrical Engineering, Pusan National University, Changjeon-Dong, Keumjeong-Ku, Pusan 609-735, South Korea |
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| Abstract: | Experiments have been carried out to investigate the characteristics of a breakdown threshold voltage as a function of various transverse electro-magnetic modes (TEM) in laser-guided discharges (LGD). The electrical breakdown was effectively guided to the location of the laser focal spot on a metallic target by using a pulsed Nd:YAG laser radiation. It is found that the minimum breakdown voltage in LGD depends upon the average density of photons reaching the electrode surface as a function of the mode of the injected laser beam. |
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| Keywords: | Breakdown threshold voltage Transverse electro-magnetic modes (TEM) Laser-guided discharges (LGD) Average density of photons |
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