Few-cycle soliton propagation

Paul Kinsler, G.H.C. New

    Department of Physics, 
    Imperial College,
    Prince Consort Road,
    London SW7 2BW, 
    United Kingdom.

    Phys.Rev.A <B>69</B>, 013805 (2004).
    also arXiv.org/physics/not_yet_submitted


Soliton propagation is usually described in the ``slowly varying
envelope approximation'' (SVEA) regime, which is not applicable for
ultrashort pulses.  We present theoretical results and numerical
simulations for both NLS and parametric ($\chi^{(2)}$) ultrashort
solitons in the ``generalised few-cycle envelope approximation''
(GFEA) regime, demonstrating their altered propagation.


Email: Dr.Paul.Kinsler@physics.org