Figure 4
From: 6.2-GHz modulated terahertz light detection using fast terahertz quantum well photodetectors
Modelling of rectified voltage for terahertz QWPs with different dimensions. Calculated rectified voltage as a function of frequency upto 40 GHz for different mesa side lengths. For clear comparison, the rectified voltage is normalized. The horizontal dashed line shows the 3 dB attenuation power level. The inset gives the QWP capacitance C QWP calculated using a parallel-plate approximation and the R-C roll-off frequency f RC = 1/(2πR L C QWP) for a load resistance R L = 50 Ω for different side lengths.
