نتایج جستجو برای: excimer laser

تعداد نتایج: 184465  

Journal: :Journal of lasers in medical sciences 2014
Shadi Mehraban Amir Feily

308nm xenon-chloride excimer laser, a novel mode of phototherapy, is an ultraviolet B radiation system consisting of a noble gas and halide. The aim of this systematic review was to investigate the literature and summarize all the experiments, clinical trials and case reports on 308-nm excimer laser in dermatological disorders. 308-nm excimer laser has currently a verified efficacy in treating ...

ژورنال: مجله دندانپزشکی 1994
رهبری, غلامحسین , مطوریان, عبدالامیر , یاسینی, اسماعیل ,

Today laser has a lot of usage in medicine and dentistry. In the field of dentistry, laser is used in soft tissue surgery, sterilization of canals (in root canal therapy) and in restorative dentistry laser is used for cavity preparation, caries removal, sealing the grooves (in preventive dentistry), etching enamel and dentin, composite polymerization and removal of tooth sensitivity. The use of...

2002
Dirk Basting Klaus Pippert Uwe Stamm

We give a review about the historical development and various technological achievements in the field of excimer lasers since their discovery in 1970. The first commercial excimer laser model in the world, the EMG 500 from Lambda Physik was operating at maximum repetition rates of only 20Hz, whereas today multi kiloHz excimer lasers as the NovaLine lasers are available. In 2000 Lambda Physik in...

Journal: :Circulation research 1987
R H Clarke J M Isner R F Donaldson G Jones

The present series of experiments used gas chromatography to identify vapor-phase photoproducts liberated during excimer laser irradiation of cardiovascular tissues in air and blood. In air, laser beams produced from ArF (193 nm) and XeF (351 nm) excimer laser gas mixtures were delivered to samples of myocardium and atherosclerotic coronary arterial segments through the wall of a quartz cell, u...

2011
F. K. Tittel I. S. Saidi G. H. Pettit R. Sauerbrey

Introduction Excimer lasers emit light energy, short optical pulses at ultraviolet wavelengths, that results in a unique laser tissue interaction. This has led to an increasing number of studies into medical applications of these lasers in fields such as ophthalmology, urology, cardiology and neurology. The typical excimer laser is operated with a combination of a halogen (fluorine or chlorine)...

2000
Hakaru Mizoguchi

Resent technical progress of laser technologies for microlithography is discussed here. The performance of highly durable 2kHz KrF excimer laser, and next generation light source of 2kHz ArF excimer laser, which are realized by the new technologies, are discribed. We also discuss about its impact on microlithography. Further more F2 laser development program in Japan and its latest result which...

Journal: :Cancer research 1987
H Green J Boll J A Parrish I E Kochevar A R Oseroff

The cytotoxicity of 193 and 248 nm excimer laser radiation was compared to that produced by a germicidal lamp (predominantly 254 nm) using Chinese hamster ovary cells (CHO), and a human diploid fibroblast line, AG-1522A. Excimer laser radiation at 248 nm (3.5 X 10(2) w/m2) and germicidal radiation (5.3 X 10(-5) w/m2) caused toxicity in both cell lines, with the AG-1522A cells (D37 = 7-8 J/m2) b...

Journal: :The British journal of ophthalmology 1986
J Marshall S Trokel S Rothery R R Krueger

This paper reviews the potential role of excimer lasers in corneal surgery. The morphology of incisions induced by two wavelengths of excimer laser radiation, 193 nm and 248 nm, are compared with the morphology of incisions produced by diamond and steel knives. Analysis suggests that ablation induced by excimer laser results from highly localised photochemical reactions and that 193 nm is the o...

2010
Kathryn Masselam Jonathan H. Talamo Glauco Reggiani

SEPTEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 85 Editor’s note: In last month’s Fundamentals column, Kathryn Masselam Hatch, MD; and Jonathan H. Talamo, MD, provided a comprehensive overview of excimer laser technology. Drs. Hatch and Talamo discussed basic concepts such as fluence, beam profile, ablation pattern, and eye tracking and registration to help readers optimize excimer la...

2014
Chia-Hsin Chou I-Che Lee Po-Yu Yang Ming-Jhe Hu Chao-Lung Wang Chun-Yu Wu Yun-Shan Chien Kuang-Yu Wang Huang-Chung Cheng

Articles you may be interested in A model of electrical conduction across the grain boundaries in polycrystalline-silicon thin film transistors and metal oxide semiconductor field effect transistors Polycrystalline silicon thin-film transistors with location-controlled crystal grains fabricated by excimer laser crystallization Appl. Improvement of the electrical performance in metal-induced lat...

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