Abstract

The atomic spectra of Li I and Li II have been observed in the region 215–160 Å. The flash-pyrolysis technique has been used to produce the atomic vapor. A toroidal focusing mirror has been used which allows the background continuum from the BRV source to be photographed with a single shot. Thirteen lines of the principal series of singly ionized lithium and the continuous absorption at the limit of the series have been observed. Absorption lines from inner-shell excitation of neutral lithium have also been observed and tentatively identified.

© 1977 Optical Society of America

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  1. L. S. Nelson, "Intense rapid heating with flash discharge lamps," Science 136, 296–303 (1962).
  2. G. Tondello, "The absorption spectrum of S I in the vacuum ultraviolet," Astrophys. J. 172, 771–783 (1972).
  3. G. Tondello, "Absorption spectrum of Cu I in the vacuum ultraviolet," J. Opt. Soc. Am. 63, 346–352 (1973).
  4. R. A. Roig, "The photoionization spectrum of neutral aluminum Al I," J. Phys. B 8, 2939–2947 (1975).
  5. R. A. Roig and G. Tondello, "The absorption spectrum of neutral boron, B I," J. Phys. B 9, 2373–2378 (1976).
  6. R. A. Roig and G. Tondello, "Extensions to the spectrum of singly ionized barium (Ba II)," J. Opt. Soc. Am. 65, 829–830 (1975).
  7. R. A. Roig, "Absorption spectrum of Ba II in the vacuum ultraviolet," J. Opt. Soc. Am. 66, 1400–1405 (1976).
  8. R. A. Roig, "The photoionization spectra of Al I, B I and Ba II," Ph.D. thesis, Physics Dept., Harvard University (1975) (unpublished).
  9. D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).
  10. T. B. Lucatorto and T. J. McIlrath, "Efficient laser production of a Nab ground-state plasma column: Absorption spectroscopy and photoionization measurement of Na+," Phys. Rev. Lett. 37, 428–431 (1976).
  11. G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).
  12. T. Lucatorto and T. J. McIlrath (private communication).
  13. W. H. Parkinson, C. Skinner, and P. Smith (private communication).
  14. A. M. Cantù and G. Tondello, "Improvements to a continuum source and a focussing technique for the 80–500 Å range," Appl. Opt. 14, 996–998 (1975).
  15. E. L. Kelly, "Atomic Emission Lines Below 2000 angstroms-Hydrogen through Argon," NRL Report 6648 (1968) (U. S. Government Printing Office, Washington, D.C.).
  16. T. H. Newsom, "Wavelength standards for use with a BRV source," Appl. Opt. 13, 2712–2715 (1974).
  17. J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).
  18. J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

1976 (3)

R. A. Roig and G. Tondello, "The absorption spectrum of neutral boron, B I," J. Phys. B 9, 2373–2378 (1976).

T. B. Lucatorto and T. J. McIlrath, "Efficient laser production of a Nab ground-state plasma column: Absorption spectroscopy and photoionization measurement of Na+," Phys. Rev. Lett. 37, 428–431 (1976).

R. A. Roig, "Absorption spectrum of Ba II in the vacuum ultraviolet," J. Opt. Soc. Am. 66, 1400–1405 (1976).

1975 (3)

1974 (1)

1973 (2)

J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

G. Tondello, "Absorption spectrum of Cu I in the vacuum ultraviolet," J. Opt. Soc. Am. 63, 346–352 (1973).

1972 (1)

G. Tondello, "The absorption spectrum of S I in the vacuum ultraviolet," Astrophys. J. 172, 771–783 (1972).

1970 (2)

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).

1962 (1)

L. S. Nelson, "Intense rapid heating with flash discharge lamps," Science 136, 296–303 (1962).

1961 (1)

G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).

Balloffet, G.

G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).

Berry, H. G.

J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

Buchet, J. P.

J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

Buchet-Poulizac, M. C.

J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

Cantù, A. M.

Conneely, M. J.

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

Cooper, J. W.

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

Ederer, D. L.

D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).

Kelly, E. L.

E. L. Kelly, "Atomic Emission Lines Below 2000 angstroms-Hydrogen through Argon," NRL Report 6648 (1968) (U. S. Government Printing Office, Washington, D.C.).

Lucatorto, T.

D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).

T. Lucatorto and T. J. McIlrath (private communication).

Lucatorto, T. B.

T. B. Lucatorto and T. J. McIlrath, "Efficient laser production of a Nab ground-state plasma column: Absorption spectroscopy and photoionization measurement of Na+," Phys. Rev. Lett. 37, 428–431 (1976).

Madden, B. P.

D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).

McIlrath, T. J.

T. B. Lucatorto and T. J. McIlrath, "Efficient laser production of a Nab ground-state plasma column: Absorption spectroscopy and photoionization measurement of Na+," Phys. Rev. Lett. 37, 428–431 (1976).

T. Lucatorto and T. J. McIlrath (private communication).

Nelson, L. S.

L. S. Nelson, "Intense rapid heating with flash discharge lamps," Science 136, 296–303 (1962).

Newsom, T. H.

Ormonde, S.

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

Parkinson, W. H.

W. H. Parkinson, C. Skinner, and P. Smith (private communication).

Roig, R. A.

R. A. Roig, "Absorption spectrum of Ba II in the vacuum ultraviolet," J. Opt. Soc. Am. 66, 1400–1405 (1976).

R. A. Roig and G. Tondello, "The absorption spectrum of neutral boron, B I," J. Phys. B 9, 2373–2378 (1976).

R. A. Roig, "The photoionization spectrum of neutral aluminum Al I," J. Phys. B 8, 2939–2947 (1975).

R. A. Roig and G. Tondello, "Extensions to the spectrum of singly ionized barium (Ba II)," J. Opt. Soc. Am. 65, 829–830 (1975).

R. A. Roig, "The photoionization spectra of Al I, B I and Ba II," Ph.D. thesis, Physics Dept., Harvard University (1975) (unpublished).

Romand, J.

G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).

Skinner, C.

W. H. Parkinson, C. Skinner, and P. Smith (private communication).

Smith, K.

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

Smith, P.

W. H. Parkinson, C. Skinner, and P. Smith (private communication).

Tondello, G.

Vodar, B.

G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).

Appl. Opt. (2)

Astrophys. J. (1)

G. Tondello, "The absorption spectrum of S I in the vacuum ultraviolet," Astrophys. J. 172, 771–783 (1972).

C. B. Acad. Sci. Paris (1)

G. Balloffet, J. Romand, and B. Vodar, "An emission source of continuous spectrum extending from the visible to the extreme ultraviolet," C. B. Acad. Sci. Paris 252, 4139–4151 (1961).

J. Opt. Soc. Am. (3)

J. Phys. (2)

R. A. Roig, "The photoionization spectrum of neutral aluminum Al I," J. Phys. B 8, 2939–2947 (1975).

R. A. Roig and G. Tondello, "The absorption spectrum of neutral boron, B I," J. Phys. B 9, 2373–2378 (1976).

Phys. Rev. (1)

J. P. Buchet, M. C. Buchet-Poulizac, and H. G. Berry, "Classifications of some transitions in doubly excited Li I and Li II," Phys. Rev. A 7, 922–924 (1973).

Phys. Rev. Lett. (3)

J. W. Cooper, M. J. Conneely, K. Smith, and S. Ormonde, "Resonant structure of lithium between the 23S and 21P thresholds," Phys. Rev. Lett. 25, 1540–1543 (1970).

D. L. Ederer, T. Lucatorto, and B. P. Madden, "Autoionization spectra of lithium," Phys. Rev. Lett. 25, 1537–1540 (1970).

T. B. Lucatorto and T. J. McIlrath, "Efficient laser production of a Nab ground-state plasma column: Absorption spectroscopy and photoionization measurement of Na+," Phys. Rev. Lett. 37, 428–431 (1976).

Science (1)

L. S. Nelson, "Intense rapid heating with flash discharge lamps," Science 136, 296–303 (1962).

Other (4)

R. A. Roig, "The photoionization spectra of Al I, B I and Ba II," Ph.D. thesis, Physics Dept., Harvard University (1975) (unpublished).

T. Lucatorto and T. J. McIlrath (private communication).

W. H. Parkinson, C. Skinner, and P. Smith (private communication).

E. L. Kelly, "Atomic Emission Lines Below 2000 angstroms-Hydrogen through Argon," NRL Report 6648 (1968) (U. S. Government Printing Office, Washington, D.C.).

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