When we see light with the naked eye, we only see one color. However, if we were to diffract this light, we would see what is called a diffracted spectrum. In this photo we see a prime example of this effect by diffraction grating. Diffraction grating splits and diffracts light into several components, in this case the spectrum. In this photo, we see sunlight streaming through a window to light a high school hallway. By placing diffraction grating glasses in front of the camera lens, the sunlight was diffracted and displayed beautiful spectra.
These pictures are included in the Art of Physics travelling exposition. To get more information on how your institution can host the travelling exposition, please contact Francine Ford, CAP's Executive Director at cap@uottawa.ca.
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