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. Author manuscript; available in PMC: 2023 Mar 1.
Published in final edited form as: IEEE Trans Terahertz Sci Technol. 2022 Jan 4;12(2):151–164. doi: 10.1109/tthz.2021.3140199

Figure 12.

Figure 12.

Rays were routed from a circular emitting aperture to a 5 mm x 5 mm detector plane for all 4225 scanning mirror positions and 27 different reference reflector positions. (a) Intensity at the detector plane for 9 different scanning mirror positions (θ,ϕ) centered about the OAP focal axis and for a reference reflector at the (x’, y’, z’) = (0, 0, 0) position. (b) Expanded view of the (θ, ϕ) = (90°, 0°) position demonstrating beam smearing (c) Reflectivity image made by summing intensities at each mirror position.