Direct current influenceon terahertz radiation detection by 2d electron plasma in the channel of a field effect transistor in magnetic field
We present experimental results of direct current effect on terahertz radiation detectionby 2D electron plasma in the channel of a field effect transistor placed in magnetic field normal to the plasma plane. We show that the direct source-drain current causes oscil- lations decay of the detection signal as a function of magnetic field. We also found that under certain conditions the DC current leads to an additional increase of the detection signal in magnetic field.