Terahertz polarization beam splitter in branch structure

Abstract

The invention discloses a terahertz polarization beam splitter in a branch structure. The terahertz polarization beam splitter in the branch structure comprises a terahertz input end, a first output port, a second output port and a flat-plate polarizer. The upper portion of the flat-plate polarizer is provided with a first porous hollowed-out array and a second porous hollowed-out array from top to bottom, a fourth porous hollowed-out array is arranged on the right of the middle of the flat-plate polarizer, and a third porous hollowed-out array and a seventh porous hollowed-out array are arranged on the left of the middle of the flat-plate polarizer from top to bottom. The lower portion of the flat-plate polarizer is provided with a fifth porous hollowed-out array and a sixth porous hollowed-out array from top to bottom, the terahertz input end is arranged on the left between the third porous hollowed-out array and the seventh porous hollowed-out array, the first output port is arranged on the right between the first porous hollowed-out array and the fourth porous hollowed-out array, and the second output port is arranged on the right between the fourth porous hollowed-out array and the fifth porous hollowed-out array. The terahertz polarization beam splitter in the branch structure has the advantages of simple and compact structure, high beam splitting rate, small dimension, small volume, convenience in manufacturing 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 branch 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, and it was the only spectral interval in the electromagnetic spectrum that was not fully studied and well utilized , is the "gap" area of ​​the electromagnetic spectrum that has not yet been fully developed by humans. Terahertz wave is in the field of transition from electronics to photonics, integrating the advantages of microwave communication and optical communication: First, terahertz wave comm...

AI Technical Summary

Problems solved by technology

However, at present, the polarization beam splitting devices in the terahertz band are still very limited. 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, difficult to manufacture, and expensive. Therefore, it is necessary to design a terahertz polarization beam splitter with simple and compact structure, small size, and high beam splitting efficiency to meet Future terahertz wave technology application needs

Images