excimer laser


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excimer laser

[′ek·sə·mər ‚lā·zər]
(optics)
A laser containing a noble gas, such as helium or neon, which is based on a transition between an excited state in which a metastable bond exists between two gas atoms and a rapidly dissociating ground state.

excimer laser

A gas laser in which a very short electrical pulse excites a mixture containing a halogen such as fluorine and a rare gas such as argon or krypton. It produces a brief, intense pulse of ultraviolet light. The output of an excimer laser is used for writing patterns on semiconductor chips, because the short wavelength can write very fine lines. In fiber optics, it is used to write fiber Bragg gratings. See ultraviolet light.
References in periodicals archive ?
The damage measurements were performed using a beamsplitter-based calibration system in which a spatially uniform beam from an ArF excimer laser is generated using a special beam homogenizer.
The Spectranetics excimer laser allows for safe traversal of extremely long arterial blockages.
He uses surgical eye lasers, or excimer lasers, to treat nearsightedness and astigmatism.
Note that the complete name for this ophthalmic laser is "WaveLight ALLEGRETTO WAVE[R] Eye-Q Excimer Laser System for laser assisted in situ keratomileusis (LASIK) treatments of myopic refractive errors up to -12.
Additional excimer laser wavelengths will be added to this service in the near future.
Summit is the only company authorized to commercially market and sell excimer laser systems in the U.
The dose measurements are performed using a beam-splitter-based calibration system in which a spatially uniform beam from an ArF excimer laser is generated using a special beam homogenizer.
The excimer laser is used to perform the refractive correction directly onto the cornea or on the back side of the corneal flap.
The Company has established a network of 12 laser refractive surgery centers in England and Wales which utilize excimer laser systems to provide refractive correction.
For more than two decades, Cymer has been committed to developing excimer laser light sources for deep ultraviolet (DUV) lithography to support the production of high-quality chips.
Photorefractive Keratectomy (PRK), uses the excimer laser to gently reshape the cornea with the result being that most patients do not require the use of eyeglasses or contact lenses post-operatively.
Approval of the premarket approval application is for the WaveLight ALLEGRETTO WAVE([R]) Eye-Q Excimer Laser System to perform LASIK treatments in patients 18 years of age or older for the reduction or elimination of myopic refractive errors up to -12.