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Figure 6
Refocusing section spots simulated with the Terahertz-Transport code at 1 THz. From left to right: incoming focused spot from the last toroidal mirror (TM6, FOV = 40 mm); footprint over the first parabolic mirror (Par1, FOV = 46 mm); intermediate focus due to Par1 (FOV = 10 mm); footprint on the second/third parabolic mirrors (Par2/3, FOV = 100 mm); spot at the I0 pyro-detector and at sample (FOV = 3 mm); footprint on the last parabolic mirror (Par4, FOV = 100 mm); and spot at the pyro-detector in transmission through the sample (FOV = 4 mm). The spot at the focus is expected to be at the diffraction limit, i.e. around 1 mm at 1 THz.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 1| January 2016| Pages 106-110
doi:10.1107/S1600577515021414
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