Skip to main content
SpringerLink
Log in

Experimental investigation of population inversion of oxygen K-ion levels

  • Published:
Journal of Soviet Laser Research Aims and scope

Abstract

Experimental results are reported of investigations of the optical properties of the plasma produced when an AI2O3 target is irradiated in vacuum by a high-power neodymiunr-glass laser system. It is shown that a number of 0 VIII and 0 VII ion levels with principal quantum numbers n = 2, 3, 4 are inversely populated. The gain at the wavelength λ ≃ 29 nm (4 → 3 transition, O VIII) under the experimental conditions is of the order of 0.01 cm-1. For the heliumlike ions O VII, in a transition with the same principal quantum numbers (ls4p1P1 → ls3s1S0, λ ≃ 36.9 nm), the gain is of the order of ∼ 10-2–10-1 cm-1, depending on the electron density.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature Cited

  1. F. V. Bunkin, V. I. Derzhiev, and S. I. Yakovlenko, “Prospects of light amplification in the far UV”, Kvantovaya Elektron. (Moscow),8, 1621–1649 (1981).

    Google Scholar 

  2. L. I. Gudzenko and L. A. Shelepin, “Negative absorption in a nonequilibrium hydrogen plasma”, Zh. Eksp. Teor. Fiz.,45, No. 5(11), 1445–1449 (1963).

    Google Scholar 

  3. F. E. Irons and N. J. Peacock, “Experimental evidence for population inversion in C5+ in an expanding laser-produced plasma”, J. Phys.,B7, 1109–1112 (1974).

    Google Scholar 

  4. É. Ya. Kononov and K. N. Koshelev, “Inverted population of multiply charged ion levels”, Kvantovaya Elektron. (Moscow),1, 2411–2416 (1974).

    Google Scholar 

  5. É. Ya. Kononov, K. N. Koshelev, Y. A. Levykin, Yu. V. Sidel'nikov, and S. S. Churilov, “Inverted population of Al XI levels in a laser plasma”, ibid.,3, 576–581 (1976).

    Google Scholar 

  6. V. A. Bhagavatula and B. Yaakobi, “Direct observation of population inversion between Al11+ levels in a laser-produced plasma”, Opt. Commun.,24, 331–335 (1978).

    Google Scholar 

  7. V. A. Boiko, B. A. Bryunetkin, B. N. Duvenov, et al., “Inverted population of helium-like magnesium ions in a recombining laser plasma”, Pis'ma Zh. Tekh. Fiz.,7, No. 11, 665–668 (1981).

    Google Scholar 

  8. T. S. Bristov, M. J. Lubin, N. M. Forsyth, E. B. Goldman, and J. M. Soures, “High-intensity x-ray spectra and stimulated emission from laser plasma”, Opt. Commun.,5, 315–318 (1972).

    Google Scholar 

  9. A. V. Vinogradov, I. I. Sobel'man, and E. A. Yukov, “Possibility of producing a laser for the far ultraviolet on transitions of multiply charged ions in an inhomogeneous plasma”, Kvantovaya Elektron. (Moscow),2, 105–113 (1975).

    Google Scholar 

  10. A. V. Vinogradov, I. Yu. Skobelev, I. I. Sobel'man, and E. A. Yukov, “Inverted medium for the vacuum ultraviolet region of the spectrum”, ibid.,2, 289–2195 (1975).

    Google Scholar 

  11. V. A. Bhagavatula, “Soft x-ray population inversion by resonant photoexcitation in multicomponent laser plasma”, J. Appl. Phys.,47, 4535 (1976).

    Google Scholar 

  12. V. G. Movshev, A. N. Ryabtsev, and N. K. Sukhodrev, “Measurement of the sensitivity of the photographic films UF-2T, UF-R, and Sc-5 in the spectral region 1.5–23.6 Å”, Zh. Prikl. Spektrosk.,12, No. 2, 274–279 (1970).

    Google Scholar 

  13. E. V. Aglitskii, V. A. Boiko, T. A. Kalinkina, A. N. Oshurkova, S. A. Pikuz, V. N. Uvarova, A. Ya. Faenov, and N. R. Shpol'skii, “Sensitometric characteristics of the films UF-R, UF-V4, and UF-VR used to record soft x rays (λ=2–10 Å)” Prib. Tekh. Eksp., No. 4, 207–209 (1975).

    Google Scholar 

  14. R. J. Liefeld, S. Hanzenly, T. B. Kirby, and D. Mott, Advances in X-Ray Analysis, Vol. 13, Plenum Press, New York (1970), pp. 373–381.

    Google Scholar 

  15. B. L. Henke, R. White, and B. Lundberg, “Semiempirical determination of mass absorption coefficients for the 5 to 50 Å x-ray region”, J. Appl. Phys.,28, 98–105 (1957).

    Google Scholar 

  16. V. I. Bayanov, S. S. Gulidov, A. A. Mak, G. V. Peregudov, I. I. Sobel'man, A. D. Sarikov, and V. A. Chirkov, “Investigation of the spatial distribution of laser-plasma parameters at a heating-pulse duration 10−10 sec by x-ray spectroscopy methods”, Kvantovaya Elektron. (Moscow),3, No. 10, 2253–2265 (1976).

    Google Scholar 

  17. R. W. P. McWhirter and A. G. Hearn, “A calculation of the instantaneous population densities of the excited levels of hydrogenlike ions in plasma”, Proc. Phys. Soc.,82, 641–654 (1963).

    Google Scholar 

  18. L. A. Vainshtein, I. I. Sobel'man, and E. A. Yukov, Excitation of Atoms and Broadening of Spectral Lines [in Russian], Nauka (1979).

  19. T. F. Stratton, Plasma Diagnostics, Academic Press (1965).

Download references

Authors
  1. V. V. Korukhov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. G. Nikulin
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. B. I. Troshin
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Lazernye Sistemy, pp. 5–14 1982.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Korukhov, V.V., Nikulin, N.G. & Troshin, B.I. Experimental investigation of population inversion of oxygen K-ion levels. J Russ Laser Res 7, 327–332 (1986). https://doi.org/10.1007/BF01120144

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01120144

Keywords

Search

Navigation