Pore-shaped flat plate TeraHertz wave polarization beam splitter with quadrilateral structure

Abstract

The invention discloses a pore-shaped flat plate TeraHertz wave polarization beam splitter with a quadrilateral structure, and the beam splitter comprises a signal input end, two signal output ends, a pore-shaped hollowed flat plate polarization apparatus and branch-shaped gaps, wherein the pore-shaped hollowed flat plate polarization apparatus consists of upper and lower two rows of large-pore-shaped hollow parts which are adjacently arrayed in a staggered manner and the staggered distances are the same; the pore-shaped hollowed flat plate polarization apparatus is provided with the branch-shaped gaps; the branch-shaped gaps comprise an upper side gap, a left-side parallelogram-shaped gap, a right-side parallelogram-shaped gap, a lower-side transverse gap, a lower-side isosceles-trapezoid-shaped gap, a lower-side parallelogram-shaped gap and a right-lower-side gap; two small-pore-shaped hollow parts are arranged between the lower-side transverse gap and the right-lower-side gap. TeraHertz signals are input from the signal input ends; and a TE (Transverse Electric) wave and a TM (Transverse Magnetic) wave are respectively output from a first signal output end and a second signal output end through the coupling effect between the branch-shaped gaps and the pore-shaped hollowed flat plate polarization apparatus. The pore-shaped flat plate TeraHertz wave polarization beam splitter has the advantages of simple structure, small occupied space, high beam splitting efficiency, easiness for manufacturing, and low cost.

Description

technical field [0001] The invention relates to a beam splitter, in particular to a flat plate terahertz wave polarizing beam splitter with a quadrilateral structure. Background technique [0002] The terahertz spectrum lies between microwave and infrared radiation. In the field of electronics, electromagnetic waves in this frequency band are also called millimeter waves and submillimeter waves; in the field of spectroscopy, it is also called far-infrared radiation. Generally, the so-called terahertz band has a frequency range of 0.1~10THz. Before the mid-1980s, the properties of this band were so poorly understood due to the lack of effective methods for generating and detecting THz radiation that it was called the THz gap in the electromagnetic spectrum. THz wave is between microwave and far-infrared light, it integrates the advantages of microwave communication and optical communication. The advanced ultra-wideband technology is hundreds or even thousands of times fast...

AI Technical Summary

Problems solved by technology

At present, many scientific research institutions at home and abroad are committed to the research of terahertz wave polarizers and have made some progress, but the relevant reports are very limited.

Existing terahertz polarizing beam splitters are often complex in structure, large in size, difficult to miniaturize, and expensive. Therefore, it is necessary to design a terahertz polarizing beam splitter with simple structure, small size, and high beam splitting efficiency. Meet the needs of future terahertz wave technology applications

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