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A comparison of recombination and photo-pumping mechanisms for producing hydrogen-like Balmer alpha gain

Published online by Cambridge University Press:  09 March 2009

G. J. Tallents
G. J. Tallents
Affiliation:
Laser Physics Laboratory, Department of Engineering Physics, Research School of Physical Sciences, Australian National University, Canberra, A.C.T. 2600, Australia
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Abstract

A comparison of the recombination and photo-pumping approaches for producing X-ray lasing on the hydrogen-like Balmer alpha line is presented. An approximate analytic expression for the ratio of the populations of the n = 3 and 2 quantum states of the hydrogen-like ion is derived and used to delineate the plasma parameter space where Balmer alpha gain can occur in a recombining plasma. The photo-pumping intensities required to produce Balmer alpha gain for plasmas initially in the steadystate are calculated using a collisional-radiative code and compared to intensities required to produce the initial plasmas for a recombination Balmer alpha laser with comparable gain. The recombination approach becomes relatively more efficient compared to the photo-pumping approach with increasing atomic number Z of the hydrogen-like ion with an estimated break-even at approximately Z = 16.

Type
Research Article
Information
Laser and Particle Beams , Volume 3 , Issue 4 , November 1985 , pp. 475 - 484
Copyright
Copyright © Cambridge University Press 1985

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References

Apruzese, J. P., Davis, J. & Whitney, K. G. 1982 J. Appl. Phys. 53, 4020.CrossRefGoogle Scholar
Bhagavatula, V. A. 1976 J. Appl. Phys. 47, 4535.CrossRefGoogle Scholar
Bohn, W. L. 1974 Appl. Phys. Lett. 24, 16.CrossRefGoogle Scholar
Burkhalter, P. G., Charatis, G. & Rockett, P. D. 1983 J. Appl. Phys. 54, 6138.CrossRefGoogle Scholar
Dave, A. K. & Pert, G. J., 1984 J. Phys. B. Atom. Mol. Phys. 17, 4953.CrossRefGoogle Scholar
Dewhurst, R. J., Jacoby, D., Pert, G. J. & Ramsden, S. A. 1976 Phys. Rev. Lett. 37, 1265.CrossRefGoogle Scholar
Hagelstein, P. L. 1983 Plasma Phys. 12, 1345.CrossRefGoogle Scholar
Irons, F. E. 1980 J. Quant. Spect. Radiat. Trans. 24, 1.CrossRefGoogle Scholar
Irons, F. E. & Peacock, N. J. 1974 J. Phys. B.: Atom. Molec. Phys. 7, 1109.CrossRefGoogle Scholar
Jacoby, D., Pert, G. J., Ramsden, S. A., Shorrock, L. D. & Tallents, G. J. 1981 Optics Commun. 37, 193.CrossRefGoogle Scholar
Jacoby, D., Pert, G. J., Shorrock, L. D. & Tallents, G. J. 1982 J. Phys. B.: Atom. Molec. Phys. 15, 3557.CrossRefGoogle Scholar
Key, M. H., Lewis, C. L. S. & Lamb, M. J. 1979 Optics Commun. 28, 331.CrossRefGoogle Scholar
Lee, R. W., Mathews, D. L., Kauffman, R. L., Estabrook, K. & Campbell, E. M. 1983 Bull. Am. Phys. Soc. 28, 1199.Google Scholar
Mathews, D. L., Hagelstein, P., Campbell, E. M., Toor, A., Kauffman, R. L.Koppel, L., Halsey, W., Phillion, D. & Price, R. 1983. IEEE J. Quant. Elect. QE19, 1786.CrossRefGoogle Scholar
McWhirter, R. W. P. & Hearn, A. G. 1963 Proc. Phys. Soc. 82, 641.CrossRefGoogle Scholar
Pert, G. J. 1979 J. Phys. B: Atom. Molec. Phys. 12, 2067.CrossRefGoogle Scholar
Pert, G. J. & Tallents, G. J. 1981 J. Phys. B: Atom. Molec. Phys. 14, 1525.CrossRefGoogle Scholar
Pert, G. J., Shorrock, L. D., Tallents, G. J., Corbett, R., Lamb, M. J., Lewis, C. L. S., Mahoney, E., Eason, R. B., Hooker, C. & Key, M. H. 1984 Laser Techniques in the Extreme Ultra-Violet, AIP Conf. Proc. No. 119 (Ed. Harris, S E and Lucatorto, T B) pp. 480–488.Google Scholar
Suckewer, S., Hawryluk, R. J., Okobayashi, M. & Schmidt, J. A. 1976 Appl. Phys. Lett. 29, 537.CrossRefGoogle Scholar
Suckewer, S., Skinner, C. H., Voorhees, D. R., Milchberg, H. M., Keane, C. & Semet, A. 1983 IEEE J. Quant. Elect. QE19, 1855.CrossRefGoogle Scholar
Tallents, G. J. 1976 Comput. Phys. Commun. 12, 205.CrossRefGoogle Scholar
Tallents, G. J. 1977 J. Phys. B: Atom. Molec. Phys. 10, 1769.CrossRefGoogle Scholar
Tallents, G. J. 1978 J. Phys. B: Atom. Molec. Phys. 11, L157.CrossRefGoogle Scholar
Tallents, G. J. 1985 J. Appl. Phys. in press.Google Scholar
Weise, W. L., Smith, M. W. & Glennon, B. M. 1966 “Atomic Transition Probabilities” Vol. 1, NSRBS-NB54 (National Bureau of Standards: Washington).Google Scholar