52results about How to "High beam splitting rate" patented technology

The invention discloses a Y-shaped porous hollowed slab terahertz wave polarizing beam splitter. A porous hollowed coupling region consists of a second linear porous hollowed region and a third linear porous hollowed region; the third linear porous hollowed region is connected with a fourth linear porous hollowed region to form a linear porous hollowed region; a first linear porous hollowed region is formed by linearly arranging a plurality of large-hole hollows and a plurality of small-hole hollows at equal intervals; an S-shaped curve porous hollowed region is formed by arranging a plurality of small-hole hollows at equal intervals in S shape; the first linear porous hollowed region, the second linear porous hollowed region and the S-shaped curve porous hollowed region are sequentially connected with one another to form a curve porous hollowed region; and the Y-shaped porous hollowed region comprises a linear porous hollowed region and a curve porous hollowed region. The Y-shaped porous hollowed slab terahertz wave polarizing beam splitter has the advantages of simple structure, high beam splitting rate, small dimension, low cost, convenience in preparation and the like, and canmeet the requirements on the application in the fields such as terahertz wave imaging, medical diagnosis, terahertz wave communication, and the like.

The invention discloses a terahertz wave polarization beam splitter. It includes a signal input terminal, a first signal output terminal, a second signal output terminal, a first piece of far-infrared optical glass, a film polarizer, and a second piece of far-infrared optical glass; the film polarizer consists of a first polarizing film and a second polarizing film The first piece of far-infrared optical glass is connected with the film polarizer and the second piece of far-infrared optical glass in sequence. The signal output end is connected with the second signal output end. The first piece of far-infrared optical glass and the second piece of far-infrared optical glass are isosceles right triangles. The refractive index of the first polarizing film is greater than that of the second polarizing film, and the lengths of the first polarizing film and the second polarizing film are equal. The incident angle of the unpolarized terahertz wave to the thin-film polarizer is 45°. The invention has the advantages of simple structure, high beam splitting rate, small size, low cost and convenient manufacture.

The invention discloses a double-stepped terahertz wave polarization beam splitter. It includes a signal input terminal, a first signal output terminal, a second signal output terminal, a substrate, a first stepped waveguide, a second stepped waveguide, and an elliptical waveguide array; the substrate is provided with a first stepped waveguide, a second stepped waveguide Waveguide, elliptical waveguide array, Hertz wave is input from the signal input end, TE wave is directly output from the first signal output end, and TM wave is output from the second signal output end through the coupling of the elliptical waveguide array to obtain the function of polarization beam splitting. The invention has the advantages of compact structure, small size, high beam splitting ratio, easy manufacture, easy integration, etc., and meets the application requirements in the fields of terahertz wave imaging, terahertz wave communication and the like.

The invention discloses a double-S-shaped terahertz wave polarization beam splitter which comprises a signal input end, a first signal output end, a second signal output end, a base body, a first horizontal straight waveguide, a second horizontal straight waveguide, a third horizontal straight waveguide, a fourth horizontal straight waveguide, a reversed isosceles trapezoid waveguide, a first longitudinal waveguide, a second longitudinal waveguide, an S-shaped waveguide and a reversed-S-shaped waveguide. The first horizontal straight waveguide, the second horizontal straight waveguide, the third horizontal straight waveguide, the fourth horizontal straight waveguide, the reversed isosceles trapezoid waveguide, the first longitudinal waveguide, the second longitudinal waveguide, the S-shaped waveguide and the reversed-S-shaped waveguide are positioned on the base body. Terahertz wave can be input from the signal input end, transverse electric (TE) wave can be directly output from the first signal output end, and transverse magnetic (TM) wave can be output from the second signal output end to obtain the polarization beam splitting function. The double-S-shaped terahertz wave polarization beam splitter has the advantages of being compact in structure, high in beam splitting rate, small in size, convenient to manufacture, easy to integrate and the like and meeting application requirements of fields of terahertz wave medical imaging, terahertz wave communication and the like.

The invention discloses a keyboard-shaped terahertz wave polarization beam splitter which comprises a signal input end, a first signal output end, a second signal output end, a first square panel, a second square panel, a third square panel, a first right-trapezoidal panel, a second right-trapezoidal panel, nine rectangular slots, a first rectangular panel, a second rectangular panel and 5X3 cylindrical slots. One end of the third square panel, the first rectangular panel and one side of the second rectangular panel are aligned with one another and are sequentially connected with one another, the 5X3 cylindrical slots are formed in the second rectangular panel, the nine identical rectangular slots are formed in the first right-trapezoidal panel, terahertz waves are horizontally inputted from the signal input end, TM (transverse magnetic) waves are outputted from the first signal output end, and TE (transverse electric) waves are outputted from the second signal output end, so that the polarization beam splitting performance can be implemented. The keyboard-shaped 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.

The invention discloses a track-shaped structure terahertz wave polarization beam splitter which comprises a terahertz wave input end, a first signal output end, a second signal output end, a base, a left side n-shaped waveguide, an intermediate coupling area and a right side spiral waveguide. The left side n-shaped waveguide, the intermediate coupling area and the right spiral waveguide are arranged on the base body. The left side n-shaped waveguide is of a longitudinal symmetry structure, the intermediate coupling area is composed of four longitudinal-symmetry and bilateral-symmetry track-shaped structures, terahertz wave can be input from the terahertz wave input end, transverse magnetic (TM) wave is directly output from the first signal output end through the left side n-shaped waveguide, and the transverse electrical (TE) wave can be output from the second signal output end to obtain the polarization beam splitting function through the coupling function of the intermediate coupling area. The track-shaped structure terahertz wave polarization beam splitter has the advantages of being simple and compact in structure, small in size, high in beam splitting rate, convenient to manufacture, easy to integrate and the like, and meeting requirements of fields of medical detection, non-destructive detection, terahertz wave imaging and the like.

The invention discloses a terahertz wave polarization beam splitter with a crossed F-shaped structure, which comprises a signal input end, a first signal output end, a second signal output end, a substrate, an uplink transmission waveguide, a downlink transmission waveguide, and a coupling coupling waveguide; The transmission waveguide and the downlink transmission waveguide are respectively placed on the upper and lower parts of the substrate. The uplink transmission waveguide includes an irregular waveguide and a symmetrical connection waveguide. The two ends of the symmetrical connection waveguide are respectively connected to two irregular waveguides. An irregular waveguide connected with an asymmetric connection coupling waveguide placed between an uplink transmission waveguide and a downlink transmission waveguide. The signal is input from the signal input end, and the beam splitting waves are respectively output from the first signal output end and the second signal output end. The terahertz wave polarization beam splitter with a crossed F-shaped structure of the present invention has the advantages of simple structure, small size, low cost, and convenient manufacture, and meets the requirements of applications in the field of terahertz wave communication and the like.