Raman spectroscopy has been widely applied in fields such as materials science, biomedicine, and environmental monitoring. However, traditional Raman spectrometers suffer from high cost and limited measurement ranges. Due to the limitations of optical filters, most Raman spectrometers lack coverage in the low-wavenumber region (below 200 cm⁻¹). To address these issues, this project designs a homemade micro-Raman spectrometer based on 785 nm laser and proposes a conceptual design for a micro-Raman spectrometer that covers the low-wavenumber range.

Liu Kaishuo, Luo Xixi, Li Chun, Wang Qiyuan, Yang Jian. Homemade Micro-Raman Spectrometer and Design for Low-Wavenumber Spectral Measurement. International Journal of Frontiers in Engineering Technology (2025), Vol. 7, Issue 4: 1-5. https://doi.org/10.25236/IJFET.2025.070401.

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