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Effect of ultra intense laser pulse on the propagation of electron plasma wave in relativistic and ponderomotive regime and particle acceleration

Published online by Cambridge University Press:  21 September 2006

ATUL KUMAR ,
M.K. GUPTA  and
R.P. SHARMA
ATUL KUMAR
Affiliation:
Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore, India
M.K. GUPTA
Affiliation:
Department of Electronic Science, University of Delhi, South Campus, Delhi, India
R.P. SHARMA
Affiliation:
Centre for Energy Studies, Indian Institute of Technology, New Delhi, India
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Abstract

In this paper, the effect of a relativistically intense Gaussian laser pulse, on the propagation of electron plasma wave is studied. The nonlinear effects considered here are the relativistic decrease of the plasma frequency and the ponderomotive expelling of the electrons. Modified coupled equations for laser and electron plasma wave are derived from fluid equations. These coupled equations are solved analytically and numerically to study the laser intensity in the plasma and the variation of amplitude of the excited electron plasma wave. It is seen that the effect of including the ponderomotive nonlinearity is significant on the excitation of plasma wave. This should affect the number of energetic electrons and their energy range on account of wave particle interaction.

Keywords

Fluid equationsIntense Gaussian laser pulsePonderomotive nonlinearityPropagation of electron plasma waveWave particle interaction
Type
Research Article
Information
Laser and Particle Beams , Volume 24 , Issue 3 , September 2006 , pp. 403 - 409
Copyright
© 2006 Cambridge University Press

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References

REFERENCES

Akhmanov, S.A., Sukhorukov, A.P. & Khokhlov, R.V. (1968). Self-focusing and diffraction of light in a nonlinear medium. Soviet Phys. Usp. 10, 609.CrossRefGoogle Scholar
Borisov, A.B., Borovskiy, A.V., Shiryaev, O.B., Korobkin, V.V., Prokhorov, A.M., Solem, J.C., Luk, T.S., Boyer, K. & Rhodes, C.K. (1992). Relativistic and charge-displacement self-channeling of intense ultrashort laser pulses in plasmas. Phys. Rev. A 45, 5830–5844.CrossRefGoogle Scholar
Brandi, H.S., Manus, C., Mainfray, G. & Lehner, T. (1993a). Relativistic self-focusing of ultraintense laser pulses in inhomogeneous underdense plasmas. Phys. Rev. E 47, 3780–3783.Google Scholar
Brandi, H.S., Manus, C., Mainfray, G., Lehner, T. & Bonnaud, G. (1993b). Relativistic and ponderomotive self-focusing of a laser beam in a radially inhomogeneous plasma. I. Paraxial approximation. Phys. Fluids 5, 3539–3550.Google Scholar
Esarey, E., Ting, A. & Sprangle, P. (1988). Relativistic focusing and beat wave phase velocity control in the plasma beat wave accelerator. Appl. Phys. Lett. 53, 1266–1268.CrossRefGoogle Scholar
Gupta, M.K., Sharma, R.P. & Gupta, V.L. (2005). Cross focusing of two laser beams and plasma wave excitation. Phys. Plasma 12, 123101-1to7.CrossRefGoogle Scholar
Kruer, W.L. (1988). The Physics of Laser Plasma Interaction. New York: Addison-Wesley Publishing Company.
Malka, V. (2002). Charged particle source produced by laser-plasma interaction in the relativistic regime. Laser Part. Beams 20, 217–221.Google Scholar
Modena, A., Najmudin, Z., Dangor, A.E., Clayton, C.E., Marsh, K.A. Joshi, C., Malka, V., Darrow, C.B., Danson, C., Neely, D., &Walsh, F.N. (1995). Nature 377, 606–608.
Pukhov, A. & Meyer-ter-Vehn, J. (1996). Multi-MeV electron beam generation by direct laser acceleration in high-density plasma channels. Phys. Rev. Lett. 76, 3975–78.CrossRefGoogle Scholar
Tajima, T. & Dawson, J.M. (1979). Laser electron accelerator. Phys. Rev. Lett. 43, 267.CrossRefGoogle Scholar
Wurtele, J.S. (1994). Advanced accelerator concepts. Physics Today, pp. 33–40.CrossRef