High efficiency terahertz diffraction grating with trapezoidal elements<xref rid="cpb_26_12_124203_fn1" ref-type="fn">*</xref> <fn id="cpb_26_12_124203_fn1"> <label>*</label> <p>Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB05033) and the National Science Instruments Major Project of China (Grant No. 2012YQ130125).</p> </fn>

High efficiency terahertz diffraction grating with trapezoidal elements* *

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB05033) and the National Science Instruments Major Project of China (Grant No. 2012YQ130125).

Wu Yin-Zhong^{1, 2}, Fan Quan-Pin², Zhang Qiang-Qiang², Wei Lai^{1, 2}, Chen Yong², Yang Zu-Hua^{2, †}, Cao Lei-Feng^{1, 2}

(color online) Structure of terahertz diffraction grating.