Non-optogalvanic signal characteristic times in prebreakdown discharges

N. Yackerson, N. S. Kopeika

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The prebreakdown regime, which exists in a gas cell during the time interval of free charge density growth from first electron-ion pair generation until the onset of breakdown, is characterized by low bias and incident field intensities. In our experiment, d. c. biased Ne and Ar gas cells at 90 torr each were illuminated with laser pulses. Both the incident laser field and d. c. bias field were smaller, sometimes much smaller, than those required for gas breakdown by each alone. Under these conditions, clear-cut electrical signals of amplitude on the order of tens of millivolts are observed as a response to laser pulse irradiation at wavelengths nonresonant to any gas atomic transitions. We called these non-breakdown responses 'prebreakdown or precursor signals'.

Original languageEnglish
Title of host publicationGas Flow and Chemical Lasers
EditorsS. Rosenwaks
Place of PublicationBerlin
PublisherSpringer Berlin Heidelberg
Pages397-401
Number of pages5
Volume15
ISBN (Print)3540174818, 9783540174813
DOIs
StatePublished - 1 Jan 1987

Publication series

NameSpringer Proceedings in Physics
Volume15
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

ASJC Scopus subject areas

  • Engineering (all)

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