Wideband pulse propagation: a detailed calculation including Raman processes

Paul Kinsler

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

    http://arXiv.org/physics/0606112

I present a detailed derivation of 
 wideband optical pulses interacting with 
a Raman transition in the kind of scheme currently used to generate the
ultra broadband light fields needed to create ultrashort pulses.
In contrast to the usual approach using separate field envelopes 
for the pump, Stokes, and anti-Stokes spectral lines, 
I use a {\em single} field envelope. 
This requires the inclusion of few-cycle corrections to the pulse propagation.
The single-field model makes fewer approximations and is mathematically 
(and hence computationally) simpler, 
although it does require greater computational resources to implement.  
The single-field theory reduces to the traditional multi-field 
one using appropriate approximations.

Email: Dr.Paul.Kinsler@physics.org