TeraHertz wave polarization beam splitter of periodically staggered rectangular structure

Abstract

The invention discloses a TeraHertz wave polarization beam splitter of a periodically staggered rectangular structure. The TeraHertz wave polarization beam splitter of the periodically staggered rectangular structure comprises a metal conveying layer of an staggered rectangular structure, a substrate, a reflecting metal plate, a signal input end, a first signal output end and a second signal output end, wherein the metal conveying layer of the staggered rectangular structure is connected with the substrate, the substrate is connected with the metal reflecting plate, the metal conveying layer of the staggered rectangular structure comprises 100*100 staggered rectangular metal units, signals are input from the signal input end, sequentially pass through the metal conveying layer of the staggered rectangular structure and the substrate, reach the metal reflecting plate and are reflected by the metal reflecting plate towards two directions, the first signal output end outputs TE waves, and the second signal output end outputs TM waves. The TeraHertz wave polarization beam splitter of the periodically staggered rectangular structure has the advantages of being simple and compact in structure, high in beam splitting efficiency and convenient to manufacture , saving materials and the like, meets the application requirements of the TeraHertz technology in the future, and has indispensable significance in facilitating the research of TeraHertz functional devices.

Description

technical field [0001] The present invention relates to a terahertz wave polarization beam splitter, in particular to a terahertz wave polarization beam splitter with a periodic interlaced rectangular structure. Background technique [0002] Terahertz technology is a new technology developed in the late 1980s. The terahertz frequency domain refers to the frequency between 0.1THz and 10THz. The unique frequency range of terahertz waves (located between the microwave frequency band and the optical frequency band) covers the molecular vibration and rotation spectra of most macromolecular substances. Regardless of its absorption spectrum, reflection spectrum or emission spectrum, the frequency band has obvious fingerprint spectrum characteristics, which is not available in microwave. In addition, terahertz waves can penetrate most substances to varying degrees, which is not available for infrared radiation. These characteristics determine the value of terahertz technology. The...

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Problems solved by technology

[0003] In recent years, the research on terahertz wave functional devices has been gradually carried out at home and abroad. The terahertz wave polarization beam splitter is a very important terahertz wave device, which is used to manipulate and control the terahertz wave in the terahertz wave system. At present, Many scientific research institutions at home and abroad are committed to this research and have made some progress, but the terahertz wave polarization beam splitter is the focus and difficulty in the research of terahertz wave functional devices, and its existing research results and progress are still very limited. , the existing terahertz polarization beam splitters are often complex in structure, bulky, difficult to manufacture and expensive, so it is necessary to design a terahertz polarization beam splitter with simple and compact structure, small size, light weight and high beam splitting efficiency To meet the needs of future terahertz wave technology applications

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