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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 19 — Oct. 1, 2009
  • pp: 2964–2966

Laser-filament-induced corona discharges and remote measurements of electric fields

K. Sugiyama, T. Fujii, M. Miki, M. Yamaguchi, A. Zhidkov, E. Hotta, and K. Nemoto  »View Author Affiliations


Optics Letters, Vol. 34, Issue 19, pp. 2964-2966 (2009)
http://dx.doi.org/10.1364/OL.34.002964


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Abstract

Femtosecond laser pulses were used to make plasma filaments near an isolated positively or negatively highly biased electrode. The electrode was well positioned to sustain a high voltage up to U max = ± 400 kV to avoid the induced breakdown or a glow discharge; the shape of the electrode was chosen to reduce the corona effects at the maximal voltage. The filament’s UV emission is shown to be very sensitive to the voltage applied: it increases nonlinearly with the electrode potential. Along with nanosecond filament-induced flashes at both polarities, long, about a half microsecond, corona flashes were observed at the negative polarity.

© 2009 Optical Society of America

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(280.3640) Remote sensing and sensors : Lidar
(300.2530) Spectroscopy : Fluorescence, laser-induced
(020.2649) Atomic and molecular physics : Strong field laser physics
(280.5395) Remote sensing and sensors : Plasma diagnostics
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

ToC Category:
Spectroscopy

History
Original Manuscript: June 12, 2009
Revised Manuscript: August 20, 2009
Manuscript Accepted: August 28, 2009
Published: September 24, 2009

Citation
K. Sugiyama, T. Fujii, M. Miki, M. Yamaguchi, A. Zhidkov, E. Hotta, and K. Nemoto, "Laser-filament-induced corona discharges and remote measurements of electric fields," Opt. Lett. 34, 2964-2966 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-19-2964

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