Tunable terahertz resonator based on superstructure and its method for material analysis

A terahertz and superstructure technology, applied in the field of terahertz devices, can solve problems such as cumbersome manufacturing process, weakening of terahertz detection specificity, and poor stability, and achieve sensitive analysis, improved terahertz detection performance, and simple production.
CN108493567BActive Publication Date: 2020-03-20ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2020-03-20

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Abstract

The invention relates to the field of Terahertz devices, and aims at providing a superstructure based adjustable terahertz resonant cavity and method using the resonant cavity for substance analysis.Existing research accomplishments of meta-materials can be used to realize qualitative and quantitative analysis on a substance to be detected. The superstructure based adjustable terahertz resonant cavity is characterized by comprising a fixed plate module, a movable plate module which can move relative to the fixed plate module and a spacing adjusting module which drives the movable plate module; the fixed plate module comprises a static plate support fixed at one end of a linear guide rail and a parallel plate supported by the static plate support and attached with a Terahertz super structure in the surface; the movable plate module comprises a moving plate support which can be located on the linear guide rail in a slidable manner via a displacement bench and a parallel plate supportedby the moving plate support and attached with a Terahertz super structure in the surface; and the spacing adjusting module comprises a screw rod arranged in parallel with the linear guide rail and a bidirectional rotation motor driving the screw rod.
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Description

technical field

[0001] The invention relates to the field of terahertz devices, in particular to an adjustable terahertz resonant cavity based on a superstructure and a method for analyzing substances thereof. Background technique

[0002] Terahertz radiation refers to a section of electromagnetic waves with a frequency between 0.1THz and 10THz. Its photon energy is low, and it has good penetration for many dielectric materials and non-polar liquids. The transition between vibration levels of many polar macromolecules The transition between the and rotational energy levels is exactly in the terahertz frequency range. Therefore, terahertz waves are suitable for non-destructive detection and analysis of substances, and have great application potential in basic biological science, medicine and material science. However, due to the long wavelength of terahertz waves, there are still shortcomings such as low sensitivity and serious background signal interference in direct target...

Claims

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