Skip to main content Accessibility help

Electromagnetic solitary waves in the saturation regime of stimulated Brillouin backscattering

  • M. LONTANO (a1), M. PASSONI (a1) (a2), C. RICONDA (a3), V.T. TIKHONCHUK (a3) and S. WEBER (a3)...


Recent particle-in-cell simulations of the stimulated Brillouin backscattering (SBBS) of electromagnetic radiation have shown that even at sub-relativistic intensities (Iλ2 = 1016 Wμm2/cm2) non-drifting solitary waves, “solitons” for short, are easily produced, and remain almost unchanged all along the simulation time, typically for several thousands of optical cycles. They appear in the form of stable local concentrations of electromagnetic radiation trapped inside quasi-neutral density holes. The plasma density inhomogeneity associated with their presence disrupts the resonant SBBS amplification. The cavitation process is accompanied by strong electron and ion heating. The physical characteristics of such solitons are discussed and they are compared with the theoretical predictions of an analytical model for localized solution of the Maxwell equations in warm plasma.


Corresponding author

Address correspondence and reprint requests to: Maurizio Lontano, Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Via R. Cozzi, 53, 20125 Milano, Italy. E-mail:


Hide All


Afeyan, B., Won, K., Savchenko, V., Johnston, T.W., Ghizzo, A. & Bertrand, P. (2004). Kinetic electrostatic electron nonlinear (KEEN) waves and their interactions driven by the ponderomotive force of crossing laser beams. Proc. IFSA 2003, pp. 213217, American Nuclear Society.
Bulanov, S.V., Inovenkov, I.N., Kirsanov, V.I., Naumova, N.M. & Sakharov, A.S. (1992). Nonlinear depletion of ultrashort and relativistically strong laser pulses in an underdense plasma. Phys. Fluids 4, 19351942.
Esirkepov, T.Zh., Nishihara, K., Bulanov, S.V. & Pegoraro, F. (2002). Three-dimensional relativistic electromagnetic subcycle solitons. Phys. Rev. Lett. 89, 275002.
Langdon, B. & Lasinski, B. (1983). Frequency-shift of self-trapped light. Phys. Fluids 26, 582587.
Lontano, M., Bulanov, S.V., Koga, J., Passoni, M. & Tajima, T. (2002). A kinetic model for the one-dimensional electromagnetic solitons in an isothermal plasma. Phys. Plasmas 9, 25622568.
Lontano, M., Borghesi, M., Bulanov, S.V., Esirkepov, T.Z., Farina, D., Naumova, N., Nishihara, K., Passoni, M., Pegoraro, F., Ruhl, H., Sakharov, A.S. & Willi, O. (2003a). Nondrifting relativistic electromagnetic solitons in plasmas. Laser Part. Beams 21, 541544.
Lontano, M., Passoni, M. & Bulanov, S.V. (2003b). Relativistic electromagnetic solitons in a warm quasineutral electron–ion plasma. Phys. Plasmas 10, 639649.
Naumova, N.M., Bulanov, S.V., Esirkepov, T.Zh., Farina, D., Nishihara, K., Pegoraro, F., Ruhl H., &Sakharov, A.S. (2001). Formation of electromagnetic postsolitons in plasmas. Phys. Rev. Lett. 87, 185004.
Pegoraro, F., Bulanov, S.V., Califano, F., Esirkepov, T.Z., Liseikina, T.V., Naumova, N.M., Ruhl, H. & Vshivkov, V.A. (2000). Nonlinear electromagnetic phenomena in the relativistic interaction of ultrahigh intensity laser pulses with plasmas. Laser Part. Beams 18, 381387.
Weber, S., Riconda, C. & Tikhonchuk, V.T. (2005a). Low-level saturation of brillouin backscattering due to cavity formation in high-intensity laser-plasma interaction. Phys. Rev. Lett. 94, 055005.
Weber, S., Riconda, C. & Tikhonchuk, V.T. (2005b). Strong kinetic effects in cavity-induced low-level saturation of stimulated Brillouin backscattering for high-intensity laser-plasma interaction. Phys. Plasmas 12, 043101.
Weber, S., Lontano, M., Passoni, M., Riconda, C. & Tikhonchuk, V.T. (2005c). Electromagnetic solitons produced by stimulated Brillouin pulsations in plasma. Phys. Plasmas 12, 112107.


Electromagnetic solitary waves in the saturation regime of stimulated Brillouin backscattering

  • M. LONTANO (a1), M. PASSONI (a1) (a2), C. RICONDA (a3), V.T. TIKHONCHUK (a3) and S. WEBER (a3)...


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed