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Terahertz wave refractive index sensor based on sunflower type photonic crystal structure

A refractive index sensor and photonic crystal technology, applied in the field of terahertz wave refractive index sensor, can solve the problems of complex structure, high cost, difficult processing, etc., and achieve the effects of high performance, easy processing, and high sensitivity

Inactive Publication Date: 2020-12-25
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing terahertz wave refractive index sensors have many shortcomings such as complex structure, low performance, high cost, and difficult processing. Therefore, it is of great significance to study terahertz wave refractive index sensors with simple structure, low cost, and easy fabrication.

Method used

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  • Terahertz wave refractive index sensor based on sunflower type photonic crystal structure
  • Terahertz wave refractive index sensor based on sunflower type photonic crystal structure
  • Terahertz wave refractive index sensor based on sunflower type photonic crystal structure

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Embodiment 1

[0033] In this embodiment, the structure and material application of the terahertz wave refractive index sensor based on the sunflower-type photonic crystal structure are described in detail above, so details will not be repeated in this embodiment. The structural parameters of the terahertz wave refractive index sensor based on the sunflower photonic crystal structure are as follows:

[0034] The radius of each air hole in the air hole area 3 is 42 μm, and the distance between two adjacent air holes in the same layer and adjacent layer air hole units is 16 μm. In the air hole area 3, taking the center of the concentric circle as the origin, the arrangement of the air holes is expressed as: Among them, a is the lattice constant, M is the layer number of the air hole unit, m is the ordinal number of the air hole in the layer of air hole unit, 1≤m≤6M, x(M,m) is the air hole unit in the Mth layer The x-axis coordinate of the m-th air hole, y(M,m) is the y-axis coordinate of the...

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Abstract

The invention discloses a terahertz wave refractive index sensor based on a sunflower type photonic crystal structure. The terahertz wave refractive index sensor comprises a substrate area, a signal input end, a signal output end, an air area and a central sample pool area, wherein the substrate area is composed of polymers; the air area is composed of air holes which are arranged at equal intervals in an annular period in a first layer and a second layer and air holes which are arranged at equal intervals in a central symmetry semi-annular period in a third layer, a fourth layer and a fifth layer, and the central sample pool area is composed of symmetrical air hole sample units; and terahertz waves are input from the signal input end, sequentially pass through the signal input end, the air area and the central sample pool area and are output at the signal output end, and the sensing function of the refractive indexes of different samples in sample pools is achieved through the effectof the photonic crystal structure. The terahertz wave refractive index sensor based on the sunflower type photonic crystal structure has the characteristics of high sensitivity, easiness in processingand the like, and has the advantages of wide application prospect and the like in the fields of biochemistry and the like.

Description

technical field [0001] The invention relates to a terahertz wave refractive index sensor, in particular to a terahertz wave refractive index sensor based on a sunflower photonic crystal structure. Background technique [0002] Terahertz wave is a section of electromagnetic wave region between millimeter wave and infrared, with a wavelength in the range of 30μm-3mm, also known as T-ray. The development of terahertz technology depends on electronics science and technology and photonics science and technology. Terahertz waves are in the cross field of macroelectronics and microphotonics research. The research on terahertz can be carried out from two fields of electronics and photonics. Filling this blank area of ​​the electromagnetic spectrum has very important scientific significance and research value. The terahertz system is mainly composed of radiation sources, detection devices and various functional devices. In practical applications, the resonance effect of different m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/41G01N21/25G01N21/03
CPCG01N21/41G01N21/25G01N21/0303
Inventor 严德贤孟淼
Owner CHINA JILIANG UNIV
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