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A type of ultraviolet laser known as an excimer laser—occasionally more accurately known as an exciplex laser—is frequently employed in the manufacture of microelectronic devices, semiconductor-based integrated circuits or “chips,” eye surgery, and micromachining.
High-resolution photolithography equipment, one of the essential technologies needed for the production of microelectronic chips, frequently uses excimer lasers.
While exciplex is short for “excited complex,” excimer is short for “excited dimer.” The term “excimer” is technically a misnomer because the majority of excimer lasers are of the noble gas halide variety. The correct term for one of these is an exciplex laser, albeit being less frequently used.
The first demonstration of a xenon excimer laser operating at 173 nm with a high-pressure gas at 12 atmospheres and electron beam pumping was made.
The laser’s spectral line was shortened from a continuum of 15 nm to just 0.25 nm, and strong stimulated emission was seen when the intensity increased 1,000-fold. A portion of the mirror coatings was vaporized by the laser’s estimated 1-joule emission, leaving its mode pattern behind. This lecture demonstrated the realistic possibility of creating powerful lasers with short wavelengths.
Argon, krypton, or xenon are typical noble gases used in excimer lasers, along with reactive gases (fluorine or chlorine). Excimers, or exciplexes in the case of noble gas halides, are pseudo-molecules that can only exist in an energized state and can generate ultraviolet laser light when the proper conditions of electrical stimulation and high pressure are present.
Because an excimer molecule possesses a binding (associative) excited state but a repulsive (dissociative) ground state, laser action is possible.Noble gases like xenon and krypton are very inert and seldom combine with other substances to form chemical compounds.
Through a procedure known as photoablation decomposition, the Ophthalmic Excimer Laser System changes the eye’s refractive state by destroying tissue from the anterior cornea. With no thermal harm to the surrounding tissue, this procedure employs the excimer laser’s UV radiation to break down chemical connections in the cornea.
The Global Ophthalmic Excimer Laser Systems Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
AMARIS TotalTech laser, a new Ophthalmic Excimer Laser Systems from Schwind eye-tech solutions, was introduced to the market by the European Society of Cataract and Refractive Surgeons. Compared to earlier lasers, the new laser has a number of improvements.
The laser has an automated fluence adjustment rate and a 500 Hz repetition rate. The laser can vaporize tissue with two distinct energies thanks to the adjustment rate, providing surgeons “the shortest ablation time with the greatest precision.” According to him, the average ablation time is 2.5 seconds per diopter. A Gaussian, 0.54 mm-diameter tiny beam is combined with the 500 Hz laser.
