Figure 7.

Apparent refractive index and calculated mean TE-TM spacing of 50 microsphere sensor measurements for two different concentrations of B. globigii spores, 3.45E–14M and 1.98E–12M. The data for the higher concentration of spores stretch further into the lower right where we assume that each point corresponds to a greater number of spores adsorbed on the corresponding microsphere

Charlebois et al. Nanoscale Research Letters 2010 5:524-532   doi:10.1007/s11671-010-9541-1