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In this work, the design of a reflector system that can rapidly scan and refocus a terahertz beam for high-resolution standoff imaging applications is presented. The design is based in a Gregorian Confocal geometry and a small mechanical fast rotating mirror is used in order to scan the beam. The system is able to scan the beam over 0.5 m in cross-range at a 8 m standoff distance. The beam refocusing...
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