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Embedded laser spectrum detection module

A spectral detection and embedded technology, applied in the field of laser spectroscopy, can solve the problems of increasing laser power, laser volume and weight, increasing difficulty in heat dissipation, and high cost

Pending Publication Date: 2021-07-02
苏州灵析精密仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But increasing laser power means larger laser volume and weight, increased heat dissipation difficulty, and higher cost

Method used

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  • Embedded laser spectrum detection module

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Embodiments of the present invention, devices such as figure 1 Shown: first lens 1, second lens 2, gain medium 3, pump source 4, laser 5, sample cell 6, detection point 7, first lens 8, first spectrometer 9, second lens 10, second spectrometer11. The gain medium 3 can be gas, liquid, solid or semiconductor, and the pump source 4 excites the gain medium 3 to achieve particle population inversion, thereby generating spontaneous and stimulated emission amplification of photons, and generating laser light 5 with a wavelength Λ. The inner walls of the first mirror 1 and the second mirror 2 are coated with a film layer with a high reflectivity for Λ (the reflectivity is greater than 99.8%). The first mirror 1 and the second mirror 2 form a concentric cavity with the detection point 7 as the focus. 5 Focuses on the detection point 7 after being reflec...

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Abstract

The invention relates to an embedded laser spectrum detection module, and belongs to the field of laser spectroscopy. According to the embedded laser spectrum detection module provided by the invention, the laser is locked in a reflection concentric cavity, a sample to be detected is positioned in the laser, and the laser is focused on a detection point through multiple reflections, so that the laser spectrum signal intensity at the detection point in the concentric cavity can be enhanced by more than 100 times. A laser spectrum signal generated at the detection point can be used for detection along the axial direction of the concentric cavity or perpendicular to the axial direction.

Description

technical field [0001] The invention relates to laser spectrum, in particular to an embedded laser spectrum detection module. Background technique [0002] Laser spectroscopy is a spectral technique in which laser light is used as the light source. Compared with ordinary light sources, laser light sources have the characteristics of good monochromaticity, high brightness, strong directionality and strong coherence. They are used to study the interaction between light and matter, so as to identify the structure, composition, Ideal light source for states and their changes. The emergence of laser has greatly improved the sensitivity and resolution of the original spectroscopy technology. Since lasers with extremely high intensity and extremely narrow pulse width have been obtained, it is possible to observe multiphoton processes, nonlinear photochemical processes, and relaxation processes after molecules are excited, and they have been developed into new spectroscopy techniq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/71G01N21/65G01N21/39
CPCG01N21/718G01N21/65G01N21/658G01N21/39G01N2021/655G01N2021/391G01N2021/392
Inventor 蒋霖坤
Owner 苏州灵析精密仪器有限公司
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