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Focalizing system and method of divergent terahertz light source optic light path

A focusing method and technology of a terahertz radiation source are applied in the field of focusing systems of the optical path of a divergent terahertz light source, which can solve problems such as difficulty in focusing, and achieve the effects of eliminating position errors and simplifying the focusing process.

Active Publication Date: 2013-08-14
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The optical system is formed by the combination of optical paths with various functions. Optical path construction technology is the foundation. Common visible and infrared light sources have high convergence and visibility, so focusing technology will not become a problem when building the corresponding optical system. Difficulties (except for high-precision optical systems); but for terahertz waves, the construction of terahertz optical paths has the characteristics of difficulty in focusing. Here we propose an optical path focusing method combined with terahertz array detectors to make up for this defect. Belongs to the field of optical application technology

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  • Focalizing system and method of divergent terahertz light source optic light path

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[0026] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0027] refer to figure 1 , a focusing method for the optical path of a divergent terahertz light source proposed by the present invention, including: a divergent terahertz radiation source (solid-state quantum cascade laser), a parallel light focusing optical path system, a converging light focusing optical path system, and a terahertz signal Array detector (thermal electron microarray detector), terahertz signal calibration d...

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Abstract

The invention relates to a focalizing system and a focalizing method of a divergent terahertz light source optic light path. According to the invention, a terahertz array detector with a real-time detection function is utilized as a signal receiving display end, two kinds of established typical optic light paths containing divergent terahertz radiation sources are focused, and according to different focusing standards, focusing operation for the divergent terahertz radiation sources is completed. The focused optic light paths comprise parallel light path focusing and converging light path focusing, wherein the parallel light path focusing mainly adopts a method that the facula is invariable by translating the terahertz array detector and the converging light path focusing finishes the focusing of the divergent terahertz light source optic light path by taking the size and the strength of the facula as the basis. The system and the method overcome the problem of difficulty in focusing of a light source in the terahertz optical system.

Description

technical field [0001] The invention relates to the field of optical technology of divergent terahertz light sources, in particular to a focusing system and method for the optical path of divergent terahertz light sources. Background technique [0002] In recent years, with the rapid development of terahertz sources and detectors, the practical application research of terahertz waves has become more and more extensive. In terms of safety detection, terahertz waves contain a large amount of material characteristic information, such as drugs and TNT have their special terahertz absorption peaks; in biomedicine, terahertz waves can detect the lesions of epidermal biological cells, such as skin burns, Skin cancer can be characterized by detecting the reflection information of terahertz waves; in terms of substance detection, terahertz waves can pass through some common infrared-impenetrable materials, such as non-polar materials such as plastics, paper and semiconductor media, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G02B27/40
Inventor 曹俊诚周涛谭智勇顾立
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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