Abstract: A system is disclosed that generates a network attack within a simulated network environment. The system includes a module that creates one or more attack events against network devices within the simulated network environment wherein the attack events include exploitations of published and unpublished vulnerabilities and failures of hardware and software network systems, devices, or applications within the simulated network environment. Additionally, the module executes the created attack event on the simulated network environment. In addition, the system has an interface configured for receiving metadata regarding each attack event and adding the received attack event metadata to each associated attack event.

Abstract: A holographic head including a collimating element for receiving a coherent beam of radiation non-circular in cross section, an objective element for receiving a radiation beam and focusing it to a spot, and a holographic unit also disposed in the path of the beam. The holographic unit includes a first hologram element for passing the beam at a predetermined diffractive order and sign. The holographic unit further includes a second hologram element inclined at an angle to the first hologram element for providing a beam substantially circular in cross section and at the same diffractive order and opposite sign to compensate for dispersion. The first and second holograms may additionally compensate for collimating or objective element aberrations, respectively.