HIGH‐POWER MICROWAVE NONLINEAR COUPLING TO ACOUSTIC RESONANCES IN A WARM PLASMA

The nonlinear high‐power coupling of microwave power to electroacoustic resonances which are at a harmonic of the driving frequency, ω1, is discussed. Experimental results that indicate the existence of this nonlinear coupling are presented, and a one‐dimensional theory which includes the thermal properties of the plasma is briefly developed. The inclusion of the temperature phenomena allows one to explain previously unexplained resonances in harmonic output.