Miniaturized laser differential confocal Raman-LIBS microscopic imaging method and device

By combining differential confocal microscopy and dual two-dimensional galvanometer scanning technology, the problems of large size and low spatial resolution of traditional laser differential confocal Raman-LIBS detection systems have been solved. This has enabled miniaturized, high spatial resolution laser differential confocal Raman-LIBS microscopy, which can simultaneously acquire the geometric morphology and molecular structure information of samples. It is applicable to fields such as deep space exploration, geological exploration, materials science and biomedicine.

CN121067751APending Publication Date: 2025-12-05BEIJING INST OF TECH
0 Cites 1 Cited by

Patent Information

Application Number
CN202511057641.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2025-07-08
Filing Date
2025-07-30
Publication Date
2025-12-05

AI Technical Summary

Technical Problem

Traditional laser differential confocal Raman-LIBS detection systems suffer from problems such as large system size, low spatial resolution, inability to acquire sample surface morphology information and air breakdown effect, which limit their miniaturization and high-performance applications.

Method used

By combining differential confocal microscopy, dual-spectral detection, and dual two-dimensional galvanometer scanning techniques, the system achieves miniaturization and high spatial resolution. Through co-optical coupling of continuous and pulsed lasers, and by using two-dimensional galvanometer scanning to reduce air breakdown caused by beam convergence, highly stable imaging is achieved.

Benefits of technology

This invention achieves miniaturized, high spatial resolution, and high stability laser differential confocal Raman-LIBS microscopy, which can simultaneously acquire information on the geometric morphology, elemental composition, and molecular structure of samples, and is applicable to fields such as deep space exploration, geological exploration, materials science, and biomedicine.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a miniaturized laser differential confocal Raman-LIBS (laser-induced breakdown spectroscopy) microscopic imaging method and device, and belongs to the technical field of microscopic spectral imaging. The device comprises a double-laser light source system for generating excitation light beams, an optical filter for separating spectral signals, a double-two-dimensional galvanometer light beam scanning system, a microscope objective, an axial scanning system, a differential confocal microscopic detection system, a mixed spectrum detection system and a computer control and display system. A double-two-dimensional micromirror scanning technology and a differential confocal microscopy technology are combined to carry out three-dimensional scanning on a sample, so that high-spatial-resolution detection of the geometrical morphology of the sample is realized; a same-light-path continuous laser and a pulse laser are respectively used as excitation light sources of Raman spectrum and laser-induced breakdown spectrum, and detection is carried out at a focal point on the surface of a sample, so that high-precision spectral information detection on the surface of the sample is realized. The sensor has the advantages of high sensitivity, multiple information, miniaturization, simple structure, wide applicability and the like, and is particularly suitable for the fields of environmental science, biomedicine, geological exploration and the like.
Need to check novelty before this filing date? Find Prior Art