Results 121 to 130 of about 949 (162)
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2014
While the current gold standard for the laser treatment of vascular lesions is the pulsed dye laser (577-595 nm), laser systems with longer wavelengths have been employed in an effort to maintain vascular selectivity and achieve greater depths of penetration while minimizing adverse effects.
Keyvan Nouri +5 more
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While the current gold standard for the laser treatment of vascular lesions is the pulsed dye laser (577-595 nm), laser systems with longer wavelengths have been employed in an effort to maintain vascular selectivity and achieve greater depths of penetration while minimizing adverse effects.
Keyvan Nouri +5 more
openaire +1 more source
Alexandrite-laser excitation of a Tm:Ho:Y_3Al_5O_12 laser
Journal of the Optical Society of America B, 1991Laser-pumped laser characteristics of a Tm:Ho:Y3Al5O12(YAG) crystal were measured as a function of the wavelength and energy of the alexandrite-laser pump source. Laser thresholds and slope efficiencies were recorded for 765-, 780-, and 785-nm pump wavelengths.
Mahendra G. Jani +4 more
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Laser-Diode-Pumped Alexandrite Laser
Advanced Solid State Lasers, 1991We report the first operation of a diode-pumped alexandrite laser. A compact alexandrite resonator with a threshold of 12 mW was longitudinally pumped by two 680 nm laser diodes.
Richard Scheps +4 more
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Population Lensing in Alexandrite Lasers
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2019Alexandrite (Cr3+:BeAl 2 O 4 ) is a vibronic laser at 701–858 nm. Its excellent thermo-mechanical properties and high energy storage make it an ideal high power and high energy Q-switched source with recent development in mJ-level red-diode-pumped Alexandrite oscillators and amplifiers [1–3]. Further power scaling of these systems is limited by thermal
Goronwy Tawy +2 more
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Advances in Alexandrite Laser Technology
Advanced Solid State Lasers, 1985The development of alexandrite as a laser material has required considerable research effort directed toward material development and characerization. In the past few years the focus of this effort has shifted toward the development of alexandrite as a broadly tunable laser source.
D.F. Heller +10 more
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High-Brightness Alexandrite Laser
Advanced Solid State Lasers, 1991We have demonstrated 2.1 J/pulse at 10 Hz in a high brightness alexandrite oscillator amplifier system. Injection seeding resulted in a narrow bandwidth and a phase conjugate mirror was used to get nearly diffraction limited divergence of the output beam.
W. R. Rapaport +3 more
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Green pumped Alexandrite lasers
SPIE Proceedings, 2005Initial experiments with pulsed and CW pumping an alexandrite laser rod at 532 nm are presented. This pumping architecture holds promise for the production of scalable diode-pumped, tunable alexandrite laser systems operating in the near infrared (750 nm), and the ultraviolet (375 and 250 nm) spectral regions.
Jerry W. Kuper, David C. Brown
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LED-pumped Alexandrite laser oscillator and amplifier
Laser Congress 2017 (ASSL, LAC), 2017Taking advantage of light-emitting-diode (LED) performance breakthrough driven by the lighting market, we report, to the best of our knowledge, the first LED-pumped chromium-doped crystal laser oscillator and amplifier based on alexandrite crystals (Cr3+:BeAl2O4).
Pichon, P. +5 more
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SPIE Proceedings, 1986
Improvements in alexandrite laser technology have led to lasers with improved efficiency, higher brightness, more energy per pulse and higher average power. These improvements have come about because of understanding and solving the "problems" of low emission cross section, high damage probability, short fluorescence lifetime, and high thermal lensing ...
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Improvements in alexandrite laser technology have led to lasers with improved efficiency, higher brightness, more energy per pulse and higher average power. These improvements have come about because of understanding and solving the "problems" of low emission cross section, high damage probability, short fluorescence lifetime, and high thermal lensing ...
openaire +1 more source
Accidental Foveal Photocoagulation Secondary to Alexandrite Laser
European Journal of Ophthalmology, 2014Purpose In recent years, we have seen an increase in the use of laser systems in the field of aesthetics (mainly depigmentation and hair removal). Alexandrite laser is the most widely used. Methods Case report.
Roberto, Anaya-Alaminos +5 more
exaly +3 more sources