Flashtube
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A flashtube (flashlamp) is an electric arc lamp designed to produce extremely intense, incoherent, full-spectrum white light for a very short time. A flashtube is a glass tube with an electrode at each end and is filled with a gas that, when triggered, ionizes and conducts a high-voltage pulse to make light. Flashtubes are used most in photography; they also are used in science, medicine, industry, and entertainment.
Flashtubes of various sizes for laser pumping. The top three are xenon flashtubes. The last one is a krypton arc lamp, (shown for comparison).
Xenon flashtubes used on smartphones and cameras are usually externally triggered.
A ruby laser head, assembled and disassembled, revealing pumping cavity, the ruby rod, and two water-cooled flashtubes.
An externally triggered, 3.5 microsecond flash. The flash fully discharges before the arc can move away from the glass and fill the tube, causing excessive wear to the lamp.
Xenon
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Xenon is a chemical element; it has symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized.
A xenon-filled discharge tube glowing light blue
An acrylic cube specially prepared for element collectors containing liquefied xenon
A layer of solid xenon floating on top of liquid xenon inside a high voltage apparatus
Liquid (featureless) and crystalline solid Xe nanoparticles produced by implanting Xe+ ions into aluminium at room temperature