Terahertz wave polarizing beam splitter with various air hole hollow plate structures
A polarization beam splitter and air hole technology, applied in the field of terahertz beam splitters, can solve the problems of high cost, low polarization beam splitting efficiency, and complex structure, and achieve small size, high polarization beam splitting efficiency, and small volume Effect
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[0018] In this embodiment, the structure of the terahertz wave polarizing beam splitter is also as described above ( figure 1 and 2 ), the specific structure will not be repeated here. The structural parameters of the terahertz wave polarizing beam splitter are specifically: the material of the hole-shaped hollow plate is silicon, and the refractive index is 3.45. The radius of the first air hole is 29.5 μm, the radius of the second air hole is 39.8 μm, the distance between the centers of the adjacent first air holes is 128.4 μm, and the distance between the centers of the circles between the adjacent second air holes is 222.4 μm, the distance between the centers of adjacent first air holes and second air holes is 128.4 μm. The long axis of the elliptical air hole is 62 μm, the short axis is 36.97 μm, and the distance between the centers of adjacent elliptical air holes is 222.4 μm. When the input terahertz wave frequency is 1THz and the input terahertz wave is TM wave, the...
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