Effects of Nonlinear Plasma Waves on the Initiation and Evolution of the Weibel Instability and Associated Anisotropic Velocity Distribution Function Phenomena in High Energy Density Plasmas*

We show theoretical and computational results related to the dynamics of the Weibel instability coexisting with nonlinear plasma waves. Kinetic modeling is used to distinguish between new regimes of behavior relating these seemingly unrelated phenomena. Using external drivers to build such waves via optical mixing, we interweave their drivers in 3-space and time to effectuate new regimes of plasma behavior that constitute parts of a series of tools and techniques we refer to as femtosecond phase-space plasma photonics, or FP^3. The aim is to initiate nonlinear, coherent kinetic high energy density plasma responses by way of electron plasma waves, KEEN waves and KEEPN waves to steer and direct light and particle streams on the femtosecond time scale. Controlling plasma waves and instabilities via the interplay between electrostatic and electromagnetic instabilities is the long term goal with potential applications throughout high energy density science and nonlinear plasma physics. The states we create may be recognized as examples of self-organization far from equilibrium, through the action of intense coherent ultrashort pulse fields.