Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Characteristics of Laser-Guided DC Discharge for Modes by Infrared Laser

모드 변화에 따른 적외선 레이저에 의한 방전 유도 특성

  • Lee, D.H. (Dept. of Electrical Eng., Pusan National Univ) ;
  • Nahm, G.H. (Dept. of Electrical Eng., Pusan National Univ) ;
  • Kim, H.J. (Dept. of Electrical Eng., Pusan National Univ) ;
  • Cho, J.S. (Dept. of Electrical Eng., Pusan National Univ)
  • Published : 1997.07.21
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Abstract

The experiments of laser-guided de discharge were carried out by using pulsed Nd:YAG laser radiation at low air pressure ranging from 0.3 to 20 torr. The minimum laser-guided de discharge voltages($V_{MD}$) at given pressure and distances between anode and cathode electrode were obtained. In order to generate TEM(transverse electromagnetic waves) modes, a pinhole was installed between a rod and a half mirror, and its diameter was adjusted from 6mm to 1.7mm. And then, we investigated the characteristics of laser-guided de discharge corresponding to different TEM modes. As a result, it was found that $V_{MD}$ at $TEM_{00}$ mode was lower than $V_{MD}$ at multimodes.

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