OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 11, Iss. 4 — Apr. 1, 1972
  • pp: 899–906

Vacuum Ultraviolet Emission from High Density Spark Discharges in Argon and Helium

Lothar Michel and Heinz Fischer  »View Author Affiliations

Applied Optics, Vol. 11, Issue 4, pp. 899-906 (1972)

View Full Text Article

Enhanced HTML    Acrobat PDF (874 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The spectral radiant intensity (without imaging) is observed between 5000 Å and 1250 Å with gas pressures 1–8 atm in argon and 10–40 atm in helium. Tungsten and carbon electrodes with 1-mm gaps were used at breakdown voltages of 1.5–6.5 kV and C = 0.85 μF and L = 16.8 nHy. After reaching opacity and saturation within the visible range, the continuum radiation shifts toward shorter wavelengths with increasing voltage and gas pressure and reaches the intensity of the broad A+, A++, and He+ lines. Saturation of spectral intensity and self-reversal of lines is observed; intensities at 1250 Å may be higher by a factor of 25 than those at 5000 Å. Mean gas temperatures of approximately 60,000 K in argon and 100,000 K in helium are determined from the spectral lines of the electrode vapor in the case of relatively low gas pressures and foremost transparent channels by means of the Norm-temperature method. Channel pressures and particle densities are calculated from the channel expansion. Theoretical values of the continuum radiant intensity agree with the experimental results reasonably well.

© 1972 Optical Society of America

Original Manuscript: September 14, 1970
Published: April 1, 1972

Lothar Michel and Heinz Fischer, "Vacuum Ultraviolet Emission from High Density Spark Discharges in Argon and Helium," Appl. Opt. 11, 899-906 (1972)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. R. W. Larenz, Z. Phys. 129, 327 (1951). [CrossRef]
  2. S. I. Braginskii, Sov. Phys. JETP 34, 1068 (1958).
  3. W. Finkelnburg, Th. Peters, in Handbuch der Physik (Springer, Berlin, 1957), Vol. 28.
  4. G. Glaser, Z. Naturforsch. 6a, 706 (1951).
  5. H. Fischer, J. Opt. Soc. Am. 47, 981 (1957). [CrossRef]
  6. H. Fischer, Conference on Extremely High Temperatures, Boston., 1958 (Wiley, New York, 1958), p. 11.
  7. M. P. Vanyukow, A. A. Mak, Sov. Phys. Usp. 66, 137 (1958). [CrossRef]
  8. M. P. Vanyukow, A. A. Mak, Proceedings, Fifth Interna-national Congress on High-Speed Photography, Washington, 1960.
  9. M. P. Vanyukow, A. A. Mak, A. I. Sadykowa, Sov. Phys. Dokl. 135, 1237 (1960).
  10. H. Fischer, L. Michel, Appl. Opt. 6, 935 (1967). [CrossRef] [PubMed]
  11. H. Fischer, W. Schwanzer, Appl. Opt. 8, 697 (1969). [CrossRef] [PubMed]
  12. G. S. Belkin, Sov. Phys. Tech. Phys. 13, 1258 (1969).
  13. K. Bunge, Spectrochim. Acta 10, 133 (1957). [CrossRef]
  14. C. M. Cundall, J. D. Craggs, Spectrochim. Acta 7, 149 (1955).
  15. F. S. Johnson, K. Watanabe, R. Tousey, J. Opt. Soc. Am. 41, 702 (1951). [CrossRef]
  16. K. Watanabe, E. L. Inn, J. Opt. Soc. Am. 43, 32 (1953). [CrossRef]
  17. G. K. Herb, W. I. van Sciver, Rev. Sci. Instrum. 36, 1650 (1965). [CrossRef]
  18. H. Späth, H. Krempl, Z. Angew. Phys. 12, 8 (1960).
  19. H. Krempl, Z. Phys. 167, 302 (1962). [CrossRef]
  20. J. Bortfeldt, D. Meiners, W. Weber, L. Wittig, Z. Angew. Phys. 27, 240 (1969).
  21. W. Gemmer, H. Gerke, H. Fischer, in preparation for publication.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited