Terahertz wave polarizing beam splitter with dual resonance cavity structure

Abstract

The invention discloses a terahertz wave polarizing beam splitter with a dual resonance cavity structure. An upper side and a lower side of a flat polarizer are respectively provided with a fourth porous hollow array and a fifth porous hollow array in transverse direction, a first porous hollow array is longitudinally located at the centre between the fourth porous hollow array and the fifth porous hollow array, a second porous hollow array is transversely arranged at a left side of the centre between the fourth porous hollow array and the fifth porous hollow array, and a third porous hollow array is transversely arranged at a right side of the fifth porous hollow array; an input port is arranged at the left side between the fourth porous hollow array and the second porous hollow array, a first output port is arranged at the left side between the fifth porous hollow array and the second porous hollow array, and a second output port is arranged at the right side between the fourth porous hollow array and the third porous hollow array. The terahertz wave polarizing beam splitter with the dual resonance cavity structure is simple in structure, high in beam splitting efficiency, small in size, low in cost, convenient to make and the like, and meets the requirements of application in the fields of terahertz wave imaging, medical diagnosis, terahertz wave communication and the like.

Description

technical field [0001] The invention relates to a beam splitter, in particular to a terahertz wave polarization beam splitter with a double resonant cavity structure. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency between 0.1THz and 10THz (wavelength between 30μm and 3mm), and are located between microwaves and infrared rays on the electromagnetic spectrum. Before the mid-1980s, due to the lack of effective generation methods and detection methods, scientists had very limited understanding of the properties of electromagnetic radiation in this band. The interval is the "gap" area of ​​the electromagnetic spectrum that has not been fully developed by human beings. Terahertz wave is in the field of transition from electronics to photonics, integrating the advantages of microwave communication and optical communication: First, terahertz wave communication can obtain much larger bandwidth than microwave communication, which can eff...

AI Technical Summary

Problems solved by technology

At present, many scientific research institutions at home and abroad are committed to research in this area and have made some progress, but there are few related reports.

Existing terahertz polarization beam splitters are often complex in structure, large in size and expensive, so it is necessary to design a terahertz polarization beam splitter with simple structure and high beam splitting efficiency to meet the needs of future terahertz wave technology applications

Images