Newsgroups: sci.physics.plasma
From: mdp1@crux2.cit.cornell.edu (Mark)
Organization: Cornell University
Subject: Short pulse group velocity Q
Approved: eastman@glue.umd.edu

I am working on research which includes an analytical calculation of the
group velocity of a short laser pulse in either vacuum or plasma. First,
a little clarification. This laser pulse is a Gaussian pulse both axially
and radially. When I say short pulse, I mean that the pulse length L <<
the Rayleigh length, but the wavelength lambda << L. I am trying to locate
any references or information regarding previous group velocity calculations
for such a pulse. If anybody knows where I might find a reference on this,
I would greatly appreciate your sending me information to the email address
listed below. The velocity in plasma is not even that important at this
point, for now I would just like a reference on short pulse propagation in
vacuum. I thank you in advance.

Mark
mdp1@crux2.cit.cornell.edu