High sensitivity in ultra-wide frequency band and
room-temperature operation make Schottky-barrier
di d (SBD) b d Q i i l d h l
2. Optical lens,
3. Pre-amplifier. Comparative measurements of SBD/ Golay Cell by FTIR .
diode (SBD) based Quasi-optical detectors the only
alternative to Golay Cell detectors for low-THz
frequency region. Bias-free operation allows for system
simplicity and ultra-low noise. In contrast to Golay Cell,
the SBD detectors are simpler, geometrically smaller,
and much faster. The last criteria makes SBD the
device of choice for many applications
ACST offers a series of quasi-optical detectors operating at frequencies from 50 GHz up to beyond 2 THz.