Miniature UV lamp excited by subnanosecond voltage pulses

M. V. Erofeev, E. Kh Baksht, V. F. Tarasenko, Yu V. Shut'ko

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Energy, time, and spectral characteristics of emission of the second positive system of N2 molecules in gaseous nitrogen, Ar-N2 mixture, and air are investigated. An FPG-10 generator with voltage pulse FWHM of 200 and 400 ps and matched-load amplitudes of 14 and 6 kV, respectively, is used to excite gases. It is shown that excitation can be performed in two regimes using this generator. In the first regime a diffuse discharge is formed at atmospheric pressure, which opens ways to design miniature nanosecond UV lamps. A diffuse discharge is formed due to the generation of runaway electrons, with the aid of electrodes having a small radius of curvature and voltage pulses with a sharp leading edge. In the second regime an elevated average radiation power is obtained under excitation by a barrier discharge. However, the operating pressure is lower in this case, and the sizes of the emitting region and the UV pulse width significantly increase.

Original languageEnglish
Pages (from-to)561-564
Number of pages4
JournalQuantum Electronics
Volume40
Issue number6
DOIs
Publication statusPublished - 2010

Keywords

  • Emission from the second positive system of nitrogen
  • Nanosecond UV pulses
  • REPDD excitation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Statistical and Nonlinear Physics

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