Emission spectra for the three light sticks used in our experiments.
We used a SLM
Aminco spectrofluorometer to determine the emission spectra of each light
stick used in the experiments (green Snaplight, yellow Snaplight, and yellow
Coghlan). The emission spectra of green Snaplight light sticks reveals
a single peak intensity at 516nm. The two yellow light sticks (Snaplight
and Coghlan) have emission spectra that resemble each other but differ
in some details. The primary peak intensities were located at 548nm for
yellow Snaplights and 549nm for yellow Coghlan light sticks. Yellow
Snaplight light sticks produce more light at the 520nm than yellow Coghlan
light sticks, while yellow Coghlan light sticks produce more light at 580nm.