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
CN112129730AInactive Publication Date: 2020-12-25CHINA JILIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA JILIANG UNIV
Publication Date
2020-12-25
Estimated Expiration
Not applicable · inactive patent

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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.
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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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