https://wikimd.com/index.php?action=history&feed=atom&title=ExcimerExcimer - Revision history2026-04-08T04:33:47ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.com/index.php?title=Excimer&diff=6310822&oldid=prevPrab: CSV import2025-02-18T01:14:09Z<p>CSV import</p>
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<p><b>New page</b></p><div>'''Excimer''' is a term used in [[Chemistry]] to describe a type of [[molecule]] that is formed from the combination of two, or more, identical molecules in an excited state. The term "excimer" is derived from the words "excited" and "dimer". Excimers are often formed when a photon is absorbed into a molecule, causing it to become excited and to bind with another molecule in its ground state. <br />
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Excimers are typically unstable and have a short lifespan. They will quickly return to their ground state, releasing a photon in the process. This release of energy is often in the form of [[ultraviolet]] light, which is why excimers are commonly used in [[laser]] technology. <br />
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== Excimer Lasers ==<br />
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[[Excimer laser]]s are a type of [[gas laser]] that is powered by an electric discharge. They are used in a variety of applications, including [[laser eye surgery]], [[microelectronics]] manufacturing, and [[laser spectroscopy]]. <br />
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Excimer lasers work by using a mixture of a noble gas and a reactive gas. When the gas mixture is excited by an electric discharge, it forms an excimer, which then decays to its ground state and releases a photon. This photon is then amplified to produce a powerful laser beam.<br />
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== Applications ==<br />
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Excimer lasers have a wide range of applications. They are used in [[laser eye surgery]] to reshape the [[cornea]] and correct vision problems such as [[myopia]], [[hyperopia]], and [[astigmatism]]. <br />
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In the field of microelectronics, excimer lasers are used in [[lithography]] to create patterns on semiconductor wafers. They are also used in [[laser spectroscopy]] to study the properties of molecules.<br />
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== See Also ==<br />
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* [[Laser]]<br />
* [[Molecule]]<br />
* [[Chemistry]]<br />
* [[Ultraviolet]]<br />
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[[Category:Chemistry]]<br />
[[Category:Physics]]<br />
[[Category:Lasers]]<br />
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