Figure 1
Experimental setup and optical properties. (a) Optical setup of the tunable pulse laser inactivation system. (b) Optical absorbance ratio (αcv/α0) between stained (αcv) and unstained (α0) E. coli O1 solutions. The inset shows the optical absorption spectrum (absorbance) of unstained E. coli solution (brown line) and a crystal violet dye-stained E. coli solution (blue line). (c) Relative ratio of scattering intensity as a function of pulse laser wavelength for E. coli O1. Here, we normalize the scattering intensity of both stained (σcv) and unstained (σ0) E. coli O1 to 1 at 650 nm.
