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We have fabricated a miniaturized optical fiber coupled THz endoscope system. The cross section of the endoscope head is only 2 × 4 mm and 6 mm long, which is small enough to be inserted into mouth. For a feasibility test, we measure reflective THz signals from the side wall of the mouth, tongue, and palm skin as well as from water for comparison.
We developed optical fiber-coupled terahertz (THz) endoscope system which utilized a photoconductive generator and detector driven by a mode-locked Ti:sapphire laser. For a feasibility test, the endoscopic system was used to measure reflective THz signals from the side wall of the mouth, tongue, and palm of hand as well as from water for comparison. The absorption and refractive index of the side...
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