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. Author manuscript; available in PMC: 2015 Jun 15.
Published in final edited form as: IEEE Trans Terahertz Sci Technol. 2011 Sep;1(1):201–219. doi: 10.1109/TTHZ.2011.2159551

Fig. 6.

Fig. 6

Plot of THz imaging system resolution as a function of frequency. (Left axis) spot size as a function of frequency using the 2D integration of (12). (Right axis) 3 dB spatial frequency cutoff in cycles per mm computed with the Fourier transform of (12).