written by Douglas Brown
This experiment uses the Tracker video analysis and modeling tool to explore the phenomenon of fluorescence and its application in fluorescent lamps. For each of five different visible spectra, students (a) observe the spectrum directly, (b) measure its brightness versus wavelength in Tracker, and (c) answer both qualitative and quantitative questions about it. The spectra include a fluorescent dye with laser and UV illumination, a mercury lamp and two fluorescent lamps, all with red and green laser spots added for easy calibration. For more information, see the AAPT presentation.
The zip file includes the lab instructions, spectrum images and Tracker data files.
This requires Tracker version 4.62 or higher. Tracker installers are available for Windows, Mac and Linux from ComPADRE or the Tracker web site (http://www.cabrillo.edu/~dbrown/tracker/).
Please note that this resource requires at least version 1.5 of Java (JRE).
1 supplemental document is available
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References Spectroscopy Using the Tracker Video Analysis Program
This poster describes the setup and procedures used to obtain the spectrum images provided for Tracker analysis.relation by Douglas Brown
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