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Terahertz wave polarization beam splitter with various-air-hole hollowed-out flat plate structure

A polarization beam splitter and air hole technology, applied in the field of terahertz beam splitters, can solve problems such as high cost, low polarization beam splitting efficiency, and complex structure, and achieve small size, high polarization beam splitting efficiency, and small volume Effect

Inactive Publication Date: 2016-08-17
CHINA JILIANG UNIV
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  • Application Information

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Problems solved by technology

However, most of the existing terahertz wave polarization beam splitters have many shortcomings such as complex structure, low polarization beam splitting efficiency, and high cost. Therefore, research on simple structure, high polarization beam splitting efficiency, low cost, small size, and adjustable performance Terahertz wave polarizing beam splitter is of great significance

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  • Terahertz wave polarization beam splitter with various-air-hole hollowed-out flat plate structure
  • Terahertz wave polarization beam splitter with various-air-hole hollowed-out flat plate structure
  • Terahertz wave polarization beam splitter with various-air-hole hollowed-out flat plate structure

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Embodiment 1

[0018] In this embodiment, the structure of the terahertz wave polarizing beam splitter is also as described above ( figure 1 with 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, th...

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Abstract

The invention discloses a terahertz wave polarization beam splitter with a various-air-hole hollowed-out flat plate structure. The terahertz wave polarization beam splitter comprises a hole-shaped hollowed-out flat plate, first air holes, second air holes, a first linear waveguide, a second linear waveguide, an oval air hole waveguide, a signal input end, a first signal output end and a second signal output end, wherein the first air holes and the second air holes are arrayed two-dimensionally periodically; signals are input from the signal input end; the first signal output end outputs TM waves; and the second signal output end outputs TE waves so that polarization beam splitting performance is achieved. The terahertz wave polarization beam splitter has the advantages of simple structure, high beam splitting rate, small size, low cost, easiness in integration and the like.

Description

technical field [0001] The present invention relates to a terahertz wave beam splitter, in particular to a terahertz wave polarization beam splitter with multiple air hole hollow plate structures. Background technique [0002] In recent years, the terahertz wave between the mature millimeter wave and infrared light on the electromagnetic spectrum is undoubtedly a new research field. The frequency of terahertz wave is 0.1-10THz, and the wavelength is 30μm-3mm. For a long time, due to the lack of effective terahertz wave generation and detection methods, compared with traditional microwave technology and optical technology, people have little understanding of the nature of electromagnetic radiation in this band, so that this band has become the terahertz wave in the electromagnetic spectrum. void. With the breakthrough of terahertz radiation source and detection technology, the unique and superior characteristics of terahertz have been discovered and have shown great applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/126
CPCG02B6/126
Inventor 李九生莫国强孙建忠
Owner CHINA JILIANG UNIV
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