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Diagram of the high-repetition rate optical delay line.
Schematics of the mirror array. The equations provide the center coordinates of the micromirrors. The width of each mirror is approximately . The delay distance is 20 mm, corresponding to a delay time of 66.7 ps. The size of the mirror array is .
(a) Photograph of the overall view of the fabricated mirror array and (b) a SEM of the mirror array inside the circle.
Diagram of the THz-TDS system for the high-repetition-rate optical delay line.
Shape of the main peak with an accumulation of 128 scans at a scan rate of 1 Hz. The inset shows the whole waveform of the terahertz pulse.
Waveform of the terahertz pulse measured with the high-repetition-rate optical delay line. The waveforms obtained by (a) a single scan and (b) an average of 128 scans at a scan rate of 25 Hz are shown.
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