Few Cycle Pulse Propagation

Paul Kinsler, G.H.C. New

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

    Phys. Rev. A 67, 023813 (2003)

    There is a longer version of this at http://arXiv.org/physics/0212016

We present a comprehensive framework for treating the nonlinear 
interaction of few-cycle pulses using an envelope description 
that goes beyond the traditional SVEA method. This is applied 
to a range of simulations that demonstrate how the effect of a 
$\chi^{(2)}$ nonlinearity differs between the many-cycle and 
few-cycle cases. Our approach, which includes diffraction, 
dispersion, multiple fields, and a wide range of 
nonlinearities, builds upon the work of Brabec and Krausz[1] 
and Porras[2]. No approximations are made until the final 
stage when a particular problem is considered. 

Email: Dr.Paul.Kinsler@physics.org