Light-gummy interaction: absorption and transmission of light
A. Gargallo, A. I. Gómez-Varela
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Base Information
Volume
V48 - N2 / 2015 International Year of Light
Reference
145-147
DOI
http://dx.doi.org/10.7149/OPA.48.2.145
Language
Spanish / Español
Keywords
Light properties, optics education, color, absorption, gummy bear experiment.
Abstract
The picture below shows three gummy bears of various colors (white, red and green) illuminated with different light sources (white LED, red laser and green laser). This basic experiment aims to teach students the characteristics of light interaction with objects and color properties, through visual demonstration of absorption and transmission.
References
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G. Wyszecki, W.S. Stiles, Color Science. Concepts and Methods, Quantitative Data and Formulae. 2nd edition. Willey Classics (2000)
J.M. Berg, J.L. Tymoczko, L. Stryer, Biochemistry. 5th Edition. Section 19.2, Light Absorption by Chlorophyll Induces Electron Transfer. New York, W.H. Freeman (2002)