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Comparison of our work and double-cone filter (DCF) terahertz wideband filter.

Comparison of our work and double-cone filter (DCF) terahertz wideband filter.

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Article
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In this paper, a silicon-based terahertz wideband filter was designed using rigorous couple wave theory to achieve high diffraction efficiency and wideband filtering performance. The optimal parameters, such as filter period, duty ratio, and groove depth, are given. The design value and tolerance analysis were carried out to obtain the allowable de...

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Context 1
... experimental results were consistent with the design results. As shown in Table 2, the highest transmission efficiency in the main lobe was close to 50%, the highest transmittance of the reference double cone filter was increased by more than 10%, the 3-dB bandwidth was 2.33 THz, and the width was 0.13 THz. The influence of the variation of the grating structure parameters on the filtering effect of the filter was studied. ...
Context 2
... experimental results were consistent with the design results. As shown in Table 2, the highest transmission efficiency in the main lobe was close to 50%, the highest transmittance of the reference double cone filter was increased by more than 10%, the 3-dB bandwidth was 2.33 THz, and the width was 0.13 THz. The influence of the variation of the grating structure parameters on the filtering effect of the filter was studied. ...

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