Terahertz imaging systems have applications for explosives detection, aircraft guidance and landing in zero-visibility weather condition, as well as terrestrial and astronomical remote sensing. These critical applications need a variety of optical elements in the TAz frequency, which has yet to he explored. In this paper, we demonstrate a high pass THz fdter which utilizes the lowered plasma frequency of thin metal wire structures. Microstereolithography technique is applied to fabricate the 2D lattice of thi…
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