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Optics Letters

Optics Letters


  • Vol. 4, Iss. 9 — Sep. 1, 1979
  • pp: 271–273

Recombination lasers in Nd and CO2 laser-produced cadmium plasmas

W. T. Silfvast, L. H. Szeto, and O. R. Wood, II  »View Author Affiliations

Optics Letters, Vol. 4, Issue 9, pp. 271-273 (1979)

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This is the first report of a recombination laser that has been produced in laser-vaporized target material. Input-laser-pulse energies as low as 0.5 mJ at 1.06 μm and 5 mJ at 10.6 μm have resulted in laser oscillation in Cd i at 1.40, 1.43, 1.45, and 1.64 μm in ≈1-cm-radius cadmium plasmas. This laser appears to have the potential for high efficiency. In addition, scaling of this plasma-recombination process to higher-ionization stages should yield short-wavelength lasers.

© 1979 Optical Society of America

Original Manuscript: April 10, 1979
Published: September 1, 1979

W. T. Silfvast, L. H. Szeto, and O. R. Wood, "Recombination lasers in Nd and CO2 laser-produced cadmium plasmas," Opt. Lett. 4, 271-273 (1979)

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  1. W. T. Silfvast, L. H. Szeto, O. R. Wood, presented at Tenth International Quantum Electronics Conference, Atlanta, Georgia, May 1978. A short note reporting laser oscillation in Cd ii in a laser-produced cadmium plasma (although not by recombination) was recently published by K. Toyoda, M. Kobiyama, S. Namba, Jpn. J. Appl. Phys. 15, 2033 (1976); however, to date all attempts by the present authors to reproduce this result have been unsuccessful. [CrossRef]
  2. W. T. Silfvast, L. H. Szeto, O. R. Wood, Appl. Phys. Lett. 31, 334 (1977). [CrossRef]
  3. C. E. Moore, Atomic Energy Levels: Volume III, Circular of the National Bureau of Standards 467 (U.S. Government Printing Office, Washington D.C., 1958), p. 56.
  4. A. S. Tibiloz, Opt. Spectrosc. 19, 463 (1965); A. N. Dubrovin, A. S. Tibiloz, M. K. Shevtsov, Opt. Spectrosc. 32, 685 (1972).
  5. J. M. Green, W. T. Silfvast, O. R. Wood, J. Appl. Phys. 48, 2753 (1977). [CrossRef]
  6. J. F. Ready, Opt. Lett. 2, 130 (1978). [CrossRef] [PubMed]
  7. J. F. Ready, Effects of High Power Laser Radiation (Academic, New York, 1971), p. 194.
  8. Population inversions have been observed in high stages of ionization. See, for example, R. H. Dixon, J. F. Seely, R. C. Elton, Phys. Rev. Lett. 40, 122 (1978). [CrossRef]

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