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Keywords: Ag rods on Si.png en Photoexcitation Electron Microscopy PEEM of Ag rods on Si Here a Hg lamp produces photons of energy just above the work function threshhold of Ag and the resultant secondary electron emission is imaged Own Wacek Swiech 2007-02-09 This is my own work and I release it to the public domain This photo was taken in Urbana IL USA Silver Scanning electron microscopic images Photoelectric effect |