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phosphorescence |
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phosphorescenceEmission of light by certain substances after they have absorbed energy, whether from visible light, other electromagnetic radiation such as ultraviolet rays or X-rays, or cathode rays (a beam of electrons). When the stimulating energy is removed phosphorescence persists for more than 0.1 nanoseconds before ceasing (unlike fluorescence, which stops immediately). See also luminescence. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Whilst all the landscape was in neutral shade his companion's face, which was the focus of his eyes, rising above the mist stratum, seemed to have a sort of phosphorescence upon it. A man floundered near me, in a splutter of phosphorescence. While this pallidness was burning aloft, few words were heard from the enchanted crew; who in one thick cluster stood on the forecastle, all their eyes gleaming in that pale phosphorescence, like a far away constellation of stars. |
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