High Intensity Laser Systems

Figure 1. Long range propagation of optical filaments in air

PM&AM Research has a number of high peak-power laser systems capable of reaching intensities above 1018 W/cm2. Amongst other applications, these laser systems have been utilized to generate optical filaments in air (Figure 1). Filamentation results in a propagation of a small and narrow beam over long distances in air, capable of delivering high intensities at range. It is caused by a dynamic balance between normal diffraction, nonlinear self-focusing and plasma defocusing.

We have also investigated laser-induced high voltage discharges in air and studied, how the generated shock waves interact with air. Novel geometries of electrical breakdown have been achieved by PM&AM Research

The availability of precise timing instrumentation has enabled us to capture fast events such as the formation of shock waves of an electrical discharge.

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