A metamaterial-based terahertz medical imager and its manufacturing method

A technology of medical imaging and manufacturing method, applied in the field of medical imaging, can solve the problems of poor response and limited absorption efficiency of infrared detectors on terahertz waves, and achieve the effect of strong penetrability, clear color real-time structural function imaging

Active Publication Date: 2018-09-25
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, the absorption efficiency of infrared detectors to terahertz waves is limited after all, so the response is very poor

Method used

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  • A metamaterial-based terahertz medical imager and its manufacturing method
  • A metamaterial-based terahertz medical imager and its manufacturing method
  • A metamaterial-based terahertz medical imager and its manufacturing method

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Embodiment Construction

[0056] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0057] Please refer to attached picture. It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be change...

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Abstract

The invention provides a terahertz medical imager based on metamaterials and a manufacturing method thereof. The imager at least comprises a multi-spectrum large-array terahertz detector based on metamaterials. The terahertz detector comprises a silicon wafer substrate with a cavity, a first dielectric layer formed on the front face of the silicon wafer substrate, a second dielectric layer suspended on the cavity, a metamaterial terahertz harmonic oscillator array suspended on the cavity, and a lead structure formed on the surface of the first dielectric layer and electrically connected with the metamaterial terahertz harmonic oscillator array. The multi-spectrum large-array terahertz detector based on the metamaterials is used for detecting terahertz waves reflected or transmitted from an imaged sample, and object reconstruction is achieved through response signals of the detector. The imager is high in imaging speed, completely harmless to living bodies, high in resolution ratio and capable of achieving real-time structure and function imaging, and is well complementary with an existing mainstream medical imaging method.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a metamaterial-based terahertz medical imager and a manufacturing method thereof. Background technique [0002] Existing medical imaging methods mainly include CT scanning imaging, magnetic resonance imaging and positron emission tomography imaging, etc. None of these imaging methods is absolutely perfect, and each has its own drawbacks. For example, CT scan imaging uses X-rays, which are harmful to the human body; magnetic resonance imaging is expensive and not suitable for patients with metal objects; positron emission tomography imaging is expensive and uses radioactive substances, which is very harmful to the human body. The energy of terahertz wave photons is very low, 107-108 times weaker than X-ray photons, radiation to biological tissues will not cause any tissue ionization, and is completely harmless to the human body; at the same time, terahertz waves have stron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00
CPCA61B5/00
Inventor 陶虎周志涛黎华史之峰陈亮毛颖曹俊诚
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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