Terahertz imaging system and imaging method

A microscopic imaging and imaging method technology, applied in the field of terahertz imaging, can solve problems such as high hardware cost, slow imaging speed, and complex signal processing

Inactive Publication Date: 2019-04-16
SHENZHEN CCT THZ TECH CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The present application provides a terahertz microscopic imaging system and imaging method, which can solve the problems of slow imaging speed, complicated signal processing and high hardware cost in the terahertz microscopic imaging system in the prior art

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0013] The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least t...

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Abstract

The invention discloses a terahertz imaging system and an imaging method. The imaging system comprises a terahertz source, a terahertz code modulation unit, a single-point detector and a signal processing unit, wherein the terahertz source is used for emitting terahertz wave beams; the terahertz code modulation unit comprises a projection device, a mask plate and an imaging medium attached to themask plate, the projection device generates a patterned modulation light beam and acts on the mask plate to generate a mask coding pattern, so that the mask plate allows at least part of the terahertzbeams to pass through and irradiate the imaging medium; the single-point detector is used for receiving the terahertz wave beam passing through the mask plate and the imaging medium; and the single-point detector is used for multiple times receiving the terahertz wave beam energy through a compression sensing inversion algorithm to perform microscopic imaging calculation, so that terahertz imaging is realized. By means of the terahertz imaging system and the imaging method, spatial coding modulation and terahertz fast microscopic imaging of terahertz wave beams can be realized.

Description

technical field [0001] The present application relates to the technical field of terahertz imaging, in particular to a terahertz microscopic imaging system and imaging method. Background technique [0002] Terahertz wave refers to coherent electromagnetic radiation with a frequency of 0.1-10THz in the far-infrared band. Because it is in a special position in the transition from electronics to photonics in the electromagnetic spectrum, it has unique properties such as perspective, safety, and spectral resolution. It has very important academic value and application prospect. [0003] Existing terahertz microscopic imaging systems can be roughly divided into two categories: one is based on terahertz probes or hollow apertures with micron-scale diameters, scanning the imaged medium point by point to achieve microscopic imaging with micron-level resolution; A kind of atomic force probe oscillates and scans the imaged medium point by point to realize microscopic imaging with nan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
CPCG01N23/04
Inventor 徐利民祁春超谭信辉
Owner SHENZHEN CCT THZ TECH CO LTD
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