Ultrawideband THz detector based on a zero-bias Schottky diode

摘要

The work in the field of THz technology includes the emitters as well as the detectors. While a large number of approaches for THz emitters with increased power levels are evolving the detectors have show less progress in the last years. But essential for all THz work is the signal to noise ratio which also benefits from improved detectors.Nowadays, pyroelectric detectors and Golay cells are the most common room-temperature THz detectors available. They feature NEPs (noise-equivalent powers) down to 100 pW/Hz1/2, but their response time is quite large limiting the modulation to few tens Hertz. These detectors are quite bulky which inhibits flexible use.