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Optica Applicata, Vol. 40, 2010, nr 1, s. 119-127
In this paper, a continuous wave (cw) spectrometer in the far infrared range is presented. Electromagnetic radiation is generated via photomixing phenomena and covers frequencies between about 50 GHz and 1.1 THz with resolution of about 10 GHz. The measured emission characteristics of different antenna types are compared to simulation results. Transmission measurements of Bragg structure for terahertz frequencies proved high spectral resolution of the spectrometer.