Transport and reflection from the microwave and mm-wave photo-excited high mobility GaAs/AlGaAs 2D electron system

The microwave and mm-wave photoexcited GaAs/AlGaAs 2DES exhibits phenomena such as the radiation-induced zero resistance states and associated magnetoresistance oscillations in the large filling factor, low magnetic field limit, which depends upon ω/ω_c where ω=2πf, and ω_c is the cyclotron frequency. In this same regime, magnetoplasmon resonances have been observed and reported which represent hybridization between plasmons and cyclotron resonance. Here, we examine and compare the transport response with the microwave reflection response over the 30GHz to 330 GHz band to separate out the magnetoplasmon and bare cyclotron resonance response in the experiment. The results are compared with observations reported in the literature.