ac90270_cal.txt Wavelength (nm) Absorption a calibration Attenuation c calibration 412 0.008477027 0.009151268 440 -0.000700139 0.01476463 488 -0.002464015 0.02494478 510 -0.002029393 0.026163916 532 -0.001522432 0.034457638 555 -0.003008042 0.031185541 650 -0.00471723 0.028653845 676 -0.005276216 0.026942926 715 -0.028165076 0.000615125