论文

Low-noise surface-enhanced mid-infrared laser absorption spectroscopy based on spectrum compensation

发布时间:2025-03-15| 点击次数:

发表刊物:Conference on Spectral Technology and Applications (CSTA 2024)

关键字:Laser spectroscopy, spectrum compensation, surface enhanced infrared absorption, biomolecular detection

摘要:Spectrum compensation methods hold the potential to decrease the limit of detection in absorption spectroscopy. We report a spectrum compensation method for a home-built surface-enhanced mid-infrared laser absorption spectroscopy detection system to reduce the noise of the system. The measurement results of the spectrum compensation method show that the fluctuations in the single beam spectrum covering 1640-977 cm-1 are smaller. Meanwhile, the dynamic range noise and the detector noise are both reduced by 4 times, the shot noise is reduced by 2 times, and the root-mean-square noise of 100% line is reduced by 1.6 times.

论文类型:论文集

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是否译文:否

发表时间:2024-10-01