A Spectrometer Based on Bragg Reflection Effect

Abstract

The present invention relates to a spectrometer based on Bragg reflection effect. In the prior art, the miniaturization is difficult, and the optical resolution is low. According to the present invention, based on the layered Bragg reflection effect, through combination of the light guiding characteristics of slow light waveguide, a light field spreads between two Bragg reflection components and is emitted from the surface of the top portion layered Bragg reflection component to complete spectrum light splitting, a convergence optical component focuses the incident light field into spectral lines, and a linear array photoelectric sensor perform spectral information photoelectric conversion so as to achieve spectral detection; and the spectrometer has characteristics of simple process, high flexibility, easy miniaturization, high chromatic dispersion, high resolution, wide application range, simple system, low light machine positioning requirements, high integration, high reliability, strong function scalability and the like.

Description

technical field [0001] The invention belongs to the field of optical technology, and relates to a spectrometer, especially a spectrometer based on the Bragg reflection effect, which is mainly used in environmental detection, material analysis, color detection, food safety, quality detection, resource exploration, biological life, medical treatment, Spectral information detection in the fields of process control, Internet of Things, optical technology, optoelectronic engineering, etc. Background technique [0002] A spectrometer is an instrument that decomposes incident light into spectral lines and collects and processes them. According to the spectroscopic principle of the dispersion component, it is widely used in environmental detection, material analysis, color detection, food safety, quality inspection, resource exploration, biological life, medical treatment, process control, Internet of Things, optical technology, optoelectronic engineering and other fields, such as ...

AI Technical Summary

Problems solved by technology

Although the prior technology has certain characteristics, there are still essential deficiencies: 1) The grating element is used to split the incident beam. The working principle is the diffraction behavior of the grating light field. The grating is a two-dimensional micro-nano structure device, and the design and manufacturing process limit the grating. The construction flexibility is poor, and the size of the grating based on the micro-nano structure is difficult to achieve miniaturization, which is essentially limited by the size of the micro-nano structure of the grating; 2) The resolution of the grating spectrometer is limited by the distribution of the micro-nano structure of the grating and the geometric size of the micro-nano structure , the resolution of the optical spectrum is not high, which affects the scope of application; 3) In the grating-based spectrometer system, other components have high requirements for parameters such as the orientation and geometric dimension angle of the grating, the system is complex, and the construction flexibility is not high. The grating spectrometer integration Low degree, reliability and functional scalability are affected

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