Cao Chenpeng, Hao Shiguo, Luo Ningning, Shi Jiulin, He Xingdao. Authentication and Analysis of Olive Oil Based on Stimulated Brillouin Scattering and UV-Visible Absorption Spectrum[J]. Chinese Journal of Lasers, 2018, 45(9): 911016
- Chinese Journal of Lasers
- Vol. 45, Issue 9, 911016 (2018)
Fig. 1. Schematic diagram of stimulated Brillouin scattering. (a) Optical schematic; (b) acquisition system based on F-P etalon and ICCD camera
Fig. 2. Near UV-visible absorption spectra of nine kinds of olive oils
Fig. 3. Near UV-visible absorption spectra of different classes of olive oils
Fig. 4. Near UV-visible absorption spectra of mixed olive oils
Fig. 5. Typical stimulated Brillouin scattering spectrum
Fig. 6. Stimulated Brillouin scattering spectra of different classes of olive oils. (a) Extra virgin olive oil; (b) pomace olive oil; (c) refined olive oil; (d) medium-grade virgin olive oil
Fig. 7. Stimulated Brillouin scattering frequency shift vs temperature for different classes of olive oils
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Table 1. Volume fraction of pomace olive oil and extra virgin olive oil in mixed olive oils
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Table 2. Empirical equation for relation between stimulated Brillouin scattering frequency shift of different classes of olive oils and temperature
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