Fig. 1. Schematic diagram of SHRS detection

Fig. 2. Structure diagram of the detection system for rapid and direct detection of material Raman spectra

Fig. 3. Experimental detection system diagram

Fig. 4. SHRS interferogram processing and restoration spectra
(a): Clover 2D interferogram; (b): Row average interferogram;(c): Fourier transform spectrum of the mean interferogram; (d): Fourier transform spectrum of each row;(e): Row spectral mean; (f): 2D spectrogram; (g): The center row corresponds to the spectrum

Fig. 5. 2D spectrogram of Sylvite

Fig. 6. Resampling the fitted line with 2D spectrogram

Fig. 7. Comparison of Raman spectra of clover obtained by three methods
(a): Row by row Fourier transforms add and average; (b): The center row of 2D spectrogram corresponds to the spectrum; (c): The corresponding spectrum of the line is resampled in 2D spectrogram