K. Papadopoulos,* G. M. Milikh, and A. S. Sharma
Departments of Physics* and Astronomy,
University of Maryland, College Park, MD
P. Rodriguez
Information Technology Division, Naval Research Laboratory, Washington, DC
Yu. V. Tokarev and Yu. I. Belov
Radiophysical Research Institute, Nizhny Novgorod, Russia
S. L. Ossakow
Plasma Physics Division, Naval Research Laboratory, Washington, DC
This research was supported by NSF under grant ATM-9713719 and ONR.