Optical Delay Line 光学延迟线 THz time-domain Spectrometer Interferometers Pumpprobe configurations Correlators Fast Scan Modules Control Software / LabView Drivers User Defined Delay Patterns Scan Rate Phase-locked to External Source Linear and Calibrated Scaling due to Position Measurement scanDelay USB Optical Delay Model 15 50 150 Max. Scan Range 15 ps (± 1.125 mm) 50 ps (± 3.75 mm) 150 ps (± 11.25 mm) Internal Generator 0.1-20 Hz 0.1-20 Hz 0.1-10 Hz Externally Triggered 0.01-20 Hz 0.01-20 Hz 0.01-10 Hz External Trigger Input TTL, 20 Hz - < 50 kHz (fast frequency divider for approx. 80 MHz input optional) Trigger Output TTL Position Output Signal ± 10 V / 15 ps ± 10 V / 50 ps ± 10 V / 150 ps Linearity of Position Signal < 0.5 % Computer Interface USB Clear Aperture 1″ 1/2″ 1/2″ Coating Protected Ag, other Coatings upon Request