نتایج جستجو برای: pulsed alexadrite laser

تعداد نتایج: 210313  

ژورنال: پوست و زیبایی 2022

Portwine stains (PWS) lesions are one of the most common childhood vascular malformations that gradually increase in color and thickness without treatment and have profound devastating psychological effects on the child. For this reason, and also because the lesions become resistant to treatment over time, early treatment of these lesions is very important. pulsed dye laser (PDL) is currently t...

2003
Arzu OZKAN Leonard MIGLIORE Corey DUNSKY Michael W. PHANEUF

Laser processing of glass components is of significant commercial interest for the optoelectronics and telecommunications industries. In this paper, we present laser processing techniques using microsecond, nanosecond, and femtosecond lasers for machining of glass. Surface structures, mainly groove geometries, are generated with a diode-pumped solid-state nanosecond pulsed UV laser operating at...

2011
Susanne Auer Volker Hable Christoph Greubel Guido A Drexler Thomas E Schmid Claus Belka Günther Dollinger Anna A Friedl

BACKGROUND Laser acceleration of protons and heavy ions may in the future be used in radiation therapy. Laser-driven particle beams are pulsed and ultra high dose rates of >10⁹ Gy s⁻¹ may be achieved. Here we compare the radiobiological effects of pulsed and continuous proton beams. METHODS The ion microbeam SNAKE at the Munich tandem accelerator was used to directly compare a pulsed and a co...

Journal: :Cutis 1999
T S Alster C A Nanni

Porokeratosis, a keratinization and fibroblast cutaneous disorder, is a progressive disease with limited treatment options. We describe a case of linear porokeratosis that responded favorably to a series of 585 nm pulsed dye laser treatments. In addition to its vascular specificity, the pulsed dye laser presumably produces a direct effect on collagen, as well as an indirect effect on histamine ...

Journal: :Archives of otolaryngology--head & neck surgery 1998
M T Speyer L Reinisch K A Cooper W R Ries

OBJECTIVES To measure and compare postoperative erythema after laser cutaneous resurfacing using 2 carbon dioxide laser systems and varying postoperative treatment methods. DESIGN Carbon dioxide laser systems are used as cutaneous resurfacing tools. The continuous-wave lasers have been associated with postoperative erythema, but the short-pulsed lasers reportedly result in less postoperative ...

Journal: :Journal of the Tennessee Medical Association 1991
T W Day C C Pardue C Dinwiddie

The port-wine stain is a disfiguring vascular birthmark that commonly occurs on the face. Amelioration of this condition in children was difficult or impossible until the introduction of the flashlamp-pumped pulsed dye laser in the late 1980s. This article provides an interdisciplinary social and ethical examination of pulsed dye laser therapy for port-wine stain in childhood. Specific issues r...

2001
F. WESTERHOFF L. BRENDEL D. E. WOLF

In this article kinetic Monte Carlo simulations for molecular beam epitaxy (MBE) and pulsed laser depositon (PLD) are compared. It will be shown that an optimal pattern conservation during MBE is achieved for a specific ratio of diffusion to deposition rate. Further on pulsed laser deposition is presented as an alternative way to control layer by layer growth. First results concerning the islan...

Journal: :Optics express 2013
Yang Tan Qingfang Luan Fengqin Liu Feng Chen Javier Rodríguez Vázquez de Aldana

This work reports on the Q-switched pulsed laser generation from double-cladding Nd:YAG ceramic waveguides. Double-cladding waveguides with different combination of diameters were inscribed into a sample of Nd:YAG ceramic. With an additional semiconductor saturable absorber, stable pulsed laser emission at the wavelength of 1064 nm was achieved with pulses of 21 ns temporal duration and ~14 μJ ...

2013
R. Serna J. M. Ballesteros C. N. Afonso M. Jiménez de Castro J. Solis

Related Articles Laser ablation and deposition of aluminium with a specially configured target-substrate arrangement J. Appl. Phys. 113, 026102 (2013) Charge localization at the interface between La1−xSrxMnO3 and the “infinite layers” cuprate CaCuO2 J. Appl. Phys. 112, 123901 (2012) Resonant photoemission study of epitaxial La0.7Sr0.3MnO3 thin film across Curie temperature Appl. Phys. Lett. 101...

Journal: :Physical chemistry chemical physics : PCCP 2014
Julie A Smyder Amanda R Amori Michael Y Odoi Harry A Stern Jeffrey J Peterson Todd D Krauss

The impact of pulsed versus continuous wave (cw) laser excitation on the photophysical properties of single quantum dots (QDs) has been investigated in an experiment in which all macroscopic variables are identical except the nature of laser excitation. Pulsed excitation exaggerates the effects of photobleaching, results in a lower probability of long ON fluorescence blinking events, and leads ...

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