期刊
OPTICS EXPRESS
卷 19, 期 15, 页码 14099-14107出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.014099
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We present a new cost-effective terahertz linear polarizer made from a stack of silicon wafers at Brewster's angle, andevaluate its performances. We show that this polarizer is wide-band, has a high extinction ratio (> 6 x 10(3)) and very small insertion losses (< 1%). We provide measurements of the temporal waveforms after linearly polarizing the THz beam and show that there is no distortion of the pulse. We compare its performances with a commercial wire-grid polarizer, and show that the Brewster's angle polarizer can conveniently be used to control the power of a terahertz beam. (C) 2011 Optical Society of America
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