An optical collection method and system for solid-state emitted fluorescence

Abstract

The present invention relates to an optical collection method and system for solid-state emitted fluorescence. The optical collection system includes: an optical collection unit, a photoelectric sensitive unit, a signal processing unit, and a data acquisition unit. The shape of the optical collection unit consists of multiple quadric surfaces and Cylindrical surfaces (or round table tops) are assembled. The process of the method is as follows: the solid to be measured is arranged in the depression in front of the optical gathering unit, and the photoelectric sensitive unit, the signal processing unit and the data acquisition unit are arranged behind the optical gathering unit. The optical collection unit can efficiently collect the fluorescence emitted by the solid to be measured, and gather the fluorescence to the photosensitive unit; the photosensitive unit converts the optical signal into an electrical signal and transmits it to the signal processing unit; the signal processing unit amplifies and filters the electrical signal 1. After de-noising processing, it is transmitted to the data acquisition unit; the data acquisition unit samples and quantifies the analog signal into a digital signal to obtain the intensity of the solid-state emitted fluorescence. The invention can greatly improve the fluorescence collection efficiency.

Description

technical field [0001] The invention relates to the technical field of quantum sensing, can be extended to various fields requiring light collection, and in particular relates to an optical collection method and system for solid-state emitted fluorescence. Background technique [0002] The emitted fluorescence generated by solid stimulated radiation contains the required measurement information, and the fluorescence collection efficiency directly affects the accuracy of information acquisition. There are two existing design ideas for fluorescence collection: one is to separate the laser light from the fluorescence light path to increase the proportion of fluorescence in the signal; the other is to change the shape of the solid to be measured to increase the fluorescence emission rate. [0003] However, using the above methods, the solid to be measured needs to be processed. The first method needs to bond rectangular prisms, photolithographic micromirrors or make nanowires on...

AI Technical Summary

Problems solved by technology

The problem with these methods is that it is inconvenient to change the shape of the solid to be measured when the hardness is high, and it is not convenient to directly operate the solid to be measured when the sample volume is small, and the treatment of the solid surface to be measured may introduce other interferences, resulting in the collected There are other unwanted components in the signal

Therefore, the above method of collecting fluorescence has shortcomings, and there is room for improvement

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