High-Sensitivity and In Situ Multi-Component Detection of Gases Based on Multiple-Reflection-Cavity-Enhanced Raman Spectroscopy.

Dewang Yang, Wenhua Li, Haoyue Tian, Zhigao Chen, Yuhang Ji, Hui Dong, Yongmei Wang

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Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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Authors and funding

7 authors.

Dewang YangCollege of Ocean Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Wenhua LiCollege of Ocean Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Haoyue TianFaculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China.

Zhigao ChenCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Yuhang JiCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Hui DongInstitute of Machinery Manufacturing Technology, China Academy of Engineering Physics (CAEP), Mianyang 621900, China.

Yongmei WangCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Funding

National Natural Science Foundation of China 52304236

6 · The paper itself

Abstract

Raman spectroscopy with the advantages of the in situ and simultaneous detection of multi-components has been widely used in the identification and quantitative detection of gas. As a type of scattering spectroscopy, the detection sensitivity of Raman spectroscopy is relatively lower, mainly due to the low signal collection efficiency. This paper presents the design and assembly of a multi-channel cavity-enhanced Raman spectroscopy system, optimizing the structure of the sample pool to reduce the loss of the laser and increase the excitation intensity of the Raman signals. Moreover, three channels are used to collect Raman signals to increase the signal collection efficiency for improving the detection sensitivity. The results showed that the limits of detection for the CH

Indexed as

high sensitivitymulti-component detectionmultiple-reflection cavityRaman spectroscopy

Identifiers

PMID39275735

DOI10.3390/s24175825

PMCPMC11398158

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