Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-26T03:47:04.060Z Has data issue: false hasContentIssue false

The spectrum of second harmonic emission from a laser-produced plasma

Published online by Cambridge University Press:  13 March 2009

R. A. Cairns
Affiliation:
Department of Applied Mathematics, University of St Andrews, St Androws, Fife KY16 9SS

Abstract

Observations show a second harmonic spectrum which is broadened and shifted towards the low-frequency side of the true harmonic. A theoretical description of this effect is given based on the assumption that plasma waves generated by resonant absorption at the critical surface are coupled to a series of side-bands via an ion sound wave, and the resultant broadening of the plasma wave spectrum is reflected in the second harmonic emission. If the ion sound wave is propagating outwards, it is shown that, for suitable parameters, a large number of side-bands on the low-frequency side can be excited, giving a spectrum in good agreement with experimental results.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bobin, J. L., Decroisette, M., Meyer, B. & Vitel, Y. 1973 Phys. Rev. Lett. 30, 594.CrossRefGoogle Scholar
Burnett, N. H., Baldis, H. A., Richardson, M. C. & Enright, G. D. 1977 Appl. Phys. Lett. 31, 172.CrossRefGoogle Scholar
Key, M. H.et al. 1977 Rutherford Laboratory Report RL–77–122/B. (Paper presented at 11th European Conference on Laser Interaction with Matter, Oxford 1977.)Google Scholar
Krokhin, O. N., Pustalov, V. V., Rupasov, A. A., Silin, V. P., Sklizkov, G. V., Starodub, A. N., Tikhonchuk, V. P. & Shukanov, A. S. 1975 Soviet Phys. JETP Lett. 22, 21.Google Scholar
Manheimer, W. M. & Klein, H. H. 1975 Phys. Fluids, 18, 1299.CrossRefGoogle Scholar
McLean, E. A., Stamper, J. A., Ripin, B. H., Griem, H. R., McMahon, J. M. & Bodner, S. E. 1977 Appl. Phys. Lett. 31, 825.CrossRefGoogle Scholar
Morales, G. J. & Lee, Y. C. 1977 Phys. Fluids, 20, 1135.CrossRefGoogle Scholar
Vinogradov, G. J. & Pustalov, V. V. 1973 Soviet Phys. JETP, 36, 492.Google Scholar