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Wire-grid polarizers in the terahertz region have been fabricated by nanoimprint technology on flexible substrates. They show ideal polarization property whereas the cost is very low.
A novel maximized-induced-current-photodiode (MIC-PD) structure with a composite field depletion layer achieves high responsivity of 0.8 A/W and a wide 3-dB bandwidth of 30 GHz at a low reverse bias voltage of 2 V for optical input power of +7 dBm.
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