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Astronomical Detectors


EMCCD Photon Counting movie, showing dual nature of light

This video clip demonstrates the ability of an EMCCD to detect single photons. The movie consists of a series of 50 frames. The target was a faintly illuminated pinhole. It demonstrates nicely both the particle and the wave nature of photons. The panel on the left shows individual frames. The panel on the right shows the photon counted and summed image as it is accumulated. Two video formats are available for download.