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An excimer laser, sometimes more correctly called an exciplex laser, is a form of ultraviolet laser which is commonly used in the production of microelectronic devices, semiconductor based integrated circuits or "chips", eye surgery, and micromachining .
A krypton fluoride laser ( KrF laser) is a particular type of excimer laser, [1] which is sometimes (more correctly) called an exciplex laser. With its 248 nanometer wavelength, it is a deep ultraviolet laser which is commonly used in the production of semiconductor integrated circuits, industrial micromachining, and scientific research.
Refractive surgery is optional eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. This can include various methods of surgical remodeling of the cornea ( keratomileusis ), lens implantation or lens replacement. The most common methods today use excimer lasers to reshape the curvature of the cornea. Refractive eye ...
ArF (and KrF) excimer lasers are widely used in high-resolution photolithography machines, a critical technology for microelectronic chip manufacturing. Excimer laser lithography [2] [3] has enabled transistor feature sizes to shrink from 800 nanometers in 1990 to 7 nanometers in 2018.
Current state-of-the-art photolithography tools use deep ultraviolet (DUV) light from excimer lasers with wavelengths of 248 (KrF) and 193 (ArF) nm (the dominant lithography technology today is thus also called " excimer laser lithography "), which allow minimum feature sizes down to 50 nm.
Introduction [ edit] Excimer lamps are quasimonochromatic light sources operating over a wide range of wavelengths in the ultraviolet (UV) and vacuum ultraviolet (VUV) spectral regions. Operation of an excimer lamp is based on the formation of excited dimers ( excimers ), which spontaneously transiting from the excited state to the ground state ...
The Nike laser at the United States Naval Research Laboratory in Washington, DC is a 56-beam, 4–5 kJ per pulse electron beam pumped krypton fluoride excimer laser which operates in the ultraviolet at 248 nm with pulsewidths of a few nanoseconds.
Laser Blended Vision is suitable in general for anyone with presbyopia who is also a candidate for corneal laser eye surgery; the range of preoperative prescriptions that can be treated varies, but results have been published for laser blended vision using the Carl Zeiss Meditec MEL80 excimer laser for myopia (short-sightedness) up to -8.50D ...
Excimer lasers are a special sort of gas laser powered by an electric discharge in which the lasing medium is an excimer, or more precisely an exciplex in existing designs.
In neurosurgery, excimer laser-assisted non-occlusive anastomosis (ELANA) is a technique used to create a bypass without interrupting the patient's blood supply. The technique reduces the risk of stroke and aneurysm rupture. [1] ELANA is similar to other cerebral bypass techniques, such as anastomosis. Both conventional and ELANA techniques ...
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