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. 2017 Oct 30;13:92. doi: 10.1186/s13007-017-0242-y

Fig. 2.

Fig. 2

The tentative relationship between the laser excitation power and SERS spectra. a The SERS spectral intensity goes with the laser excitation power (for instance of the Blue Eye cultivar, 785 nm excitation). b The growing trends of intensities for individual peaks might be related to the laser excitation power (for instance of the Blue Eye cultivar, 785 nm excitation)