Abstract:We have developed a signal amplifier for the detection of weak repetitive pulsed signals superimposed on a large background. It is based on a double gated integrator principle with two channels locked to a sequence of alternate signal and background pulses. The circuit is compact and cost effective, and thus suitable for use in large numbers with detector arrays, for example in terahertz imaging. The performance was verified in terahertz time-domain spectroscopy based on an amplified femtosecond laser and foun… Show more
In a new approach we report on a THz imaging system with arrays of horn-type photoconductive switches emitting in-plain. Aim is to combine the flexibility and sensitivity of THz antennas with the measurement speed of electro-optic sampling
In a new approach we report on a THz imaging system with arrays of horn-type photoconductive switches emitting in-plain. Aim is to combine the flexibility and sensitivity of THz antennas with the measurement speed of electro-optic sampling
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.