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Electronic control terahertz wave polarization beam splitter

A polarizing beam splitter and terahertz technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as difficult manufacturing process, low beam splitting efficiency, and complex structure, and achieve compact structure, high beam splitting rate, and simple compact effect

Inactive Publication Date: 2015-01-14
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies of low beam splitting efficiency, complex structure, large size, difficult actual manufacturing process and difficult control in the prior art, the present invention provides an electronically controlled terahertz wave polarization beam splitter with high beam splitting efficiency

Method used

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  • Electronic control terahertz wave polarization beam splitter

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Embodiment 1

[0017] Electronically controlled terahertz wave polarizing beam splitter:

[0018] The terahertz wave is input along the polymer transmission waveguide from the input end of the terahertz wave. The substrate is high resistance silicon with a refractive index of 3.42, the length of the substrate is 5000 μm, the width is 3000 μm, and the height is 600 μm. The polymer transmission waveguide is embedded in the matrix to a depth of 75 μm, the inner conductor has a radius of 20 μm, and the outer cladding has a radius of 50 μm. The length of the high-conductivity material layer is 2000 μm, the width is 1000 μm, and the thickness is 5 μm; the distance between the lower side of the high-conductivity material layer and the center of the circle is 25 μm. The electrodes are 2000 μm long, 200 μm wide, and 20 μm thick. When a voltage is applied across the electrodes, the TE wave is output from the terahertz wave output end, and the transmission curves of TE and TM waves output from the te...

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Abstract

The invention discloses an electronic control terahertz wave polarization beam splitter. The electronic control terahertz wave polarization beam splitter comprises a terahertz wave input end, a polymer transmission waveguide, high-conductivity material layers, electrodes, a substrate and a terahertz output end, wherein the polymer transmission waveguide is formed by sequentially connecting a first polymer transmission waveguide, a second polymer transmission waveguide and a third polymer transmission waveguide, the high-conductivity material layers are symmetrically arranged on the second polymer transmission waveguide, the electrodes are symmetrically arranged at the two sides of the high-conductivity material layers, the polymer transmission waveguide is embedded into the substrate, terahertz is input along the polymer transmission waveguide from the terahertz input end, when voltage is applied to the two ends of the electrodes, transverse electric (TE) wave is output from the terahertz wave output end, and when no external voltage is applied to the two ends of the electrodes, transverse magnetic (TM) wave is output from the terahertz output end. The electronic control terahertz wave polarization beam splitter has the advantages of compact structure, small size, high beam splitting efficiency and the like, is convenient to control, and meets the requirements of fields such as terahertz non-destructive test, medical image, terahertz communication and the like.

Description

technical field [0001] The invention relates to a beam splitter, in particular to an electrically controlled terahertz wave polarization beam splitter. Background technique [0002] Terahertz refers to electromagnetic waves with a frequency in the range of 0.1THz to 10THz. Terahertz wave science and technology is a highly comprehensive frontier subject, which involves many important disciplines such as electromagnetism, semiconductor physics, chemistry, optoelectronics, communication theory, quantum theory and material science, so terahertz wave science and technology It has important academic research value and practical application value in both micro and macro fields. Terahertz wave science and technology has expanded the methods and means for human beings to study the microcosm. At the same time, it also has broad application prospects in macroscopic fields such as biomedicine, public safety, environmental testing, chemical analysis, and industrial nondestructive testin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/01
Inventor 李九生
Owner CHINA JILIANG UNIV
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