readme.txt There are three data files for this work, they relate to the three dyes, Nile Red, R6G and TDBC. In eace case there is a data file, i.e. NR.dat, R6G.dat and TDBC.dat. In each file there are two or three columns, at the top of each column is a descriptor for the column. As an example, for TDBC.dat, the columns are (i) wavelength (nm), eV, and extinction coefficient.