Nanosecond Gigawatt Compressor Excitation Dynamics

The urgency of the problem of obtaining gigawatt nanosecond microwave pulses is due to the growing popularity of the concept of terahertz acceleration of charged particles. The aim of this project is to develop a new gigawatt range of peak powers of nanosecond pulses in the 170 GHz frequency range. Open resonator active traveling wave compressors promise the highest possible compression ratio. The compressor is based on the well-known open 3-mirror scheme, with the power input using spatial harmonics transformation effect at a coupling mirror with a sinusoidal corrugation. A differential equation describing the process of excitation is derived from basic principles. The efficiency of the active compressor depends on the regime of pumping. We can see that the less thickness of the active element is used, the more efficiency and compression ratio can be achieved.