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. 2015 Jun 22;10(6):e0130063. doi: 10.1371/journal.pone.0130063

Fig 5. Schematic illustration of z-scan for E. coli experiments.

Fig 5

(A) Approximation of E. coli geometry by a cylinder with radius R. The scan axis z passes through the geometric center of the cylinder. (B) Z-scan fluorescence intensity profile of cylinder is modeled by Eq 18.