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Terahertz wave transmission characteristic, a periodic array sub-wavelength holes slab, has been characterized by terahertz time-domain spectroscopy in the region from 0.1 to 3THz. The measurement results show that the transmittance peak of the periodic array sub-wavelength holes slab is about 35% at frequency of 2.11THz, which is consistent with that of calculation. The periodic array sub-wavelength...
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