Abstract

We describe the properties of as subclass of quartet levels of alkalilike atoms and ions that often retain metastability against autoionization and may have large radiative yields. Gain cross sections for XUV lasers with wavelengths between 20 and 100 nm are given.

© 1984 Optical Society of America

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References

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  1. P. Feldman, R. Novick, “Autoionizing states in the alkali atoms with microsecond lifetimes,” Phys. Rev. 160, 143 (1967).
    [CrossRef]
  2. S. E. Harris, “Proposal for a 207-Å laser in lithium,” Opt. Lett. 5, 1 (1980); and J. E. Rothenberg, S. E. Harris, “XUV lasers by quartet to doublet energy transfer in alkali atoms,” IEEE J. Quantum Electron. QE-17, 418 (1981).
    [CrossRef] [PubMed]
  3. R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981), Secs. 8-1, 16-1, and 18-7.
  4. J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
    [CrossRef]
  5. I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).
  6. Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).
  7. E. J. McGuire, “The L-MM Auger spectra of Na and Mg,” Phys. Rev. A 14, 1402 (1976).
    [CrossRef]
  8. R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
    [CrossRef]
  9. W. T. Silfvast, J. J. Macklin, O. R. Wood, “High-gain inner-shell photoionization laser in Cd vapor pumped by soft-x-ray radiation from a laser-produced plasma source,” Opt. Lett. 8, 551 (1983).
    [CrossRef] [PubMed]

1983 (2)

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

W. T. Silfvast, J. J. Macklin, O. R. Wood, “High-gain inner-shell photoionization laser in Cd vapor pumped by soft-x-ray radiation from a laser-produced plasma source,” Opt. Lett. 8, 551 (1983).
[CrossRef] [PubMed]

1982 (1)

Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).

1981 (1)

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

1980 (1)

1979 (1)

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

1976 (1)

E. J. McGuire, “The L-MM Auger spectra of Na and Mg,” Phys. Rev. A 14, 1402 (1976).
[CrossRef]

1967 (1)

P. Feldman, R. Novick, “Autoionizing states in the alkali atoms with microsecond lifetimes,” Phys. Rev. 160, 143 (1967).
[CrossRef]

Aleksakhin, I. S.

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

Baig, M. A.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Bogachev, G. G.

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

Caro, R. G.

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

Connerade, J. P.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Cowan, R. D.

R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981), Secs. 8-1, 16-1, and 18-7.

Falcone, R. W.

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

Feldman, P.

P. Feldman, R. Novick, “Autoionizing states in the alkali atoms with microsecond lifetimes,” Phys. Rev. 160, 143 (1967).
[CrossRef]

Harris, S. E.

Macklin, J. J.

Mansfield, M. W. D.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

McGuire, E. J.

E. J. McGuire, “The L-MM Auger spectra of Na and Mg,” Phys. Rev. A 14, 1402 (1976).
[CrossRef]

Newsom, G. H.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Novick, R.

P. Feldman, R. Novick, “Autoionizing states in the alkali atoms with microsecond lifetimes,” Phys. Rev. 160, 143 (1967).
[CrossRef]

Silfvast, W. T.

Thimm, K.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Tracy, D. H.

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Ugrin, S. Yu.

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

Vukstich, V. S.

Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).

Wang, J. C.

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

Wood, O. R.

Young, J. F.

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

Zapesochnyl, I. P.

Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

Zhmenyak, Yu. V.

Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).

Appl. Phys. Lett. (1)

R. G. Caro, J. C. Wang, R. W. Falcone, J. F. Young, S. E. Harris, “Soft x-ray pumping of metastable levels of Li+,” Appl. Phys. Lett. 42, 9 (1983).
[CrossRef]

Opt. Lett. (2)

Phil. Trans. R. Soc. London Ser. A (1)

J. P. Connerade, M. W. D. Mansfield, G. H. Newsom, D. H. Tracy, M. A. Baig, K. Thimm, “A study of 5p excitation in atomic barium. I. The 5p absorption spectra of Ba I, Cs I and related elements,” Phil. Trans. R. Soc. London Ser. A 290, 327 (1979); S. J. Rose, I. P. Grant, J. P. Connerade, “A study of 5p excitation in atomic barium. II. A fully relativistic analysis of 5p excitation in atomic barium,” Phil. Trans. R. Soc. London Ser. A 296, 41 (1980).
[CrossRef]

Phys. Rev. (1)

P. Feldman, R. Novick, “Autoionizing states in the alkali atoms with microsecond lifetimes,” Phys. Rev. 160, 143 (1967).
[CrossRef]

Phys. Rev. A (1)

E. J. McGuire, “The L-MM Auger spectra of Na and Mg,” Phys. Rev. A 14, 1402 (1976).
[CrossRef]

Pis’ma Zh. Eksp. Teor. Fiz. (1)

Yu. V. Zhmenyak, V. S. Vukstich, I. P. Zapesochnyl, “Radiative decay of Na I autoionization states excited in electron–atom collisions,” Pis’ma Zh. Eksp. Teor. Fiz. 35, 321 (1982).

Sov. Phys. JETP (1)

I. S. Aleksakhin, G. G. Bogachev, I. P. Zapesochnyl, S. Yu. Ugrin, “Experimental investigations of radiative decay of autoionizing states of alkali and alkaline earth elements,” Sov. Phys. JETP 53, 1140 (1981).

Other (1)

R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981), Secs. 8-1, 16-1, and 18-7.

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Figures (1)

Fig. 1
Fig. 1

Energy-level diagram for 107.5-nm Cs laser.

Tables (4)

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Table 1 Single Configurational Autoionizing Rates of Quartet Levels in the Sodium 2p53s3p Configuration

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Table 2 Quasi-metastable Quartet Levels of Alkalilike Configurations

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Table 3 Single Configurational Autoionizing and Radiative Rates for Quasi-metastable Column I and Column II Elements

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Table 4 Gain Cross Sections of Transitions from Quasi-metastable Levels

Equations (1)

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S 3 / 2 4 = 0 . 98 S 3 / 2 4 0 . 15 P 3 / 2 4 + 0 . 07 ( P 1 ) 2 P 3 / 2 + 0 . 04 ( P 3 ) 2 P 3 / 2 0 . 001 ( P 1 ) 2 D 3 / 2 0 . 001 ( P 3 ) 2 D 3 / 2 .

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