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Terahertz imaging method and system based on atomic gas chamber

A technology of terahertz imaging and atomic gas chamber, which is applied in the field of terahertz communication and can solve the problems of low imaging efficiency, poor imaging effect, and long time-consuming diffraction effect scanning.

Pending Publication Date: 2021-09-17
清远市天之衡量子科技有限公司 +1
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Problems solved by technology

[0005] Embodiments of the present invention provide a terahertz imaging method and system based on an atomic gas chamber, which solves the problem that the prior art terahertz imaging is limited by the diffraction effect of terahertz waves and the influence of long scanning time, which leads to imaging efficiency. The problem of low and poor imaging effect

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The term "and / or" in the embodiment of the present application is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which can mean: A exists alone, and A and B exist at the same time , there are three cases of B alone.

[0030] The terms "first" and "...

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Abstract

The embodiment of the invention provides a terahertz imaging method and system based on an atomic gas chamber, and the method achieves the real-time imaging of terahertz field space distribution converted into light wave space distribution through laser with two wavelengths for Rydberg atoms excited in the atomic gas chamber. Therefore, the high-resolution real-time imaging terahertz camera based on the atoms is realized, the atoms are incoherently transferred from an initial Rydberg state to another Rydberg state, when the atoms are deexcited from the Rydberg state, fluorescence generated by spontaneous radiation is in a visible wave band, the spatial distribution of fluorescence intensity is consistent with the distribution of a terahertz field before conversion, therefore, the obtained visible light image is the terahertz image before conversion. The emitted fluorescence can be detected by using a CCD (visible light imaging), so that terahertz imaging is obtained.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of terahertz communication, and in particular to a terahertz imaging method and system based on an atomic gas chamber. Background technique [0002] As one of the key technologies of terahertz, terahertz imaging has a wide range of applications in security inspection and non-destructive testing due to some excellent properties of terahertz. Terahertz wave refers to the electromagnetic wave with a frequency in the range of 0.1THz to 10THz and a wavelength in the range of 0.03mm to 3mm. Because its photons have many superior characteristics such as low energy, fingerprint spectrum, and high transparency, they are used in physics and chemistry. , biology and other fields have great application value. However, the spatial resolution of traditional imaging technology is limited by the diffraction limit, and it is usually difficult to break through the millimeter level. Therefore, it also gr...

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Application Information

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IPC IPC(8): G01N21/01G01N21/3586G01N21/64
CPCG01N21/01G01N21/3586G01N21/6402
Inventor 黄巍李显喆林雅益佘圳跃张新定颜辉
Owner 清远市天之衡量子科技有限公司
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