I. Gregory, T. Drysdale, W. Tribe, D. Cumming, M. Evans, M. Missous, E. Linfield
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A high performance CW-THz photomixing imaging system
We have constructed a continuous-wave terahertz imaging system based on diode lasers, a photoconductive emitter, and a phase-sensitive photoconductive receiver. It is inexpensive and compact, but with a performance comparable with established pulsed terahertz systems. We also use a novel photonic crystal filter to remove unwanted low frequency noise components.
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