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Argon laser for treatment of benign eyelid tumors
(2004-09-01)
Small lesions located in the skin might be treated using the laser system. The purpose of this is to report the therapy of benign eyelid tumors using argon laser. Forty-four benign eyelid tumors were treated using argon ...
Argon Laser Iridoplasty for Optic Obstruction of Boston Keratoprosthesis
(Amer Medical Assoc, 2012-08-01)
The Boston keratoprosthesis (KPro) has been used successfully in eyes with poor prognosis for conventional penetrating keratoplasty. However, postoperative changes in iris configuration after Boston KPro may occur, including ...
Time-resolved Z-scan and thermal lens measurements in Er+3 and Nd+3 doped fluoroindate glasses
(1997-05-12)
In rare earth ion doped solids, a resonant non-linear refractive index, n2, appears when the laser pumps one of the ion excited states and the refractive index change is proportional to the excited state population. In ...
Mechanical Strength and Analysis of Fracture of Titanium Joining Submitted to Laser and Tig Welding
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2012-11-01)
This study compared the tensile strength and fracture mechanism of tungsten inert gas (TIG) welds in cylindrical rods of commercially pure titanium (cp Ti) with those of laser welds and intact samples. Thirty dumbbell-shaped ...
In Vitro Study of the influence of the pigments of three colored gels over the light distribution of visible light by digital images
(Spie - Int Soc Optical Engineering, 2009-01-01)
Nowadays the real contribution of light on the acceleration of the chemical reaction for the dental bleaching is under incredulity, mostly because the real mechanisms of its contribution still are obscure. Objectives: ...
Effect of light curing sources on microhardness of different composite resins
(Maik Nauka/interperiodica/springer, 2011-06-01)
This study evaluated the influence of light-curing units (LCUs) on Knoop microhardness (KHN) of different composite resins formulations. Four LCUs, one Quartz-Tungsten-Halogen (QTH) for 20 s, one Argon-Ion-Laser (AL) for ...
Phase-locking of superimposed diffractive gratings in photoresists
(Elsevier B.V., 2002-07-01)
The superposition of optical interference patterns in a photoresist film can produce a rich variety of diffractive structures. In particular, a periodic non-sinusoidal surface relief profile can be synthesized by adding ...
Tratamento da necrose aguda de retina: revisão sistemática
(Conselho Brasileiro de Oftalmologia, 2005-08-01)
PURPOSE: The purpose of this study was to identify, according to an sistematic review, the best treatment for acute retinal necrosis. METHODS: Following the methodologic guidance of the Cochrane Collaboration and its ...
Photoluminescence at room temperature in disordered Ba(0.50)Sr(0.)5(0)(Ti0.80Sn0.20)O-3 thin films
(American Institute of Physics (AIP), 2006-05-22)
Photoluminescence (PL) properties at room temperature of disordered Ba0.50Sr0.50(Ti0.80Sn0.20)O-3 (BST:Sn) thin films were obtained by the polymeric precursor method. X-ray diffraction data and corresponding PL properties ...