Figure 7
From: Laser diode based THz-TDS system with 133 dB peak signal-to-noise ratio at 100 GHz
(a) Increase in SNR with a rising number of averages for individual frequency components, with the highest SNR begin 133 dB at 100 GHz . (b) Histogram of the number of found local maxima within individual slices, with a std. dev. of approx. 3.6. (c) Frequency resolved phase of an average with 140,000 individual terahertz pulses and phase std. dev. calculated from averaging groups of 10.
