chalcogen(redirected from Chalcogens)
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Related to Chalcogens: Noble gases
Any of the elements that form group 16 of the periodic table; included are oxygen, sulfur, selenium, tellurium, and polonium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
chalcogenide glassA type of glass that uses chalcogen (pronounced "kal-kuh-gen") elements such as sulfur, selenium and tellurium. It has the unique property of being able to interact with both photons and electrons. Used in lenses, optical fibers, the recording layer in optical discs, it is also used in the bit cell of phase change memory. See GST, phase change disc, phase change memory and programmable metallization cell.
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