Results 201 to 210 of about 58,610 (265)
Prospective study of using 1064-nm Q-switched Nd: YAG combined with radiofrequency-imported vitamin C on pigmented infraorbital dark circles. [PDF]
Lasers Med SciYi Y, Luo H, Zhang Q, Wu M.
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Efficacy and Safety of Q-Switched 1064/532 nm Nd:YAG Lasers on Benign Hypermelanosis in Dark-Skinned Individuals-A Preliminary Study. [PDF]
J Clin MedPiccolo D +4 more
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Vitreolysis With the Q-Switched Laser
Archives of Ophthalmology, 1985We present an overview concerning the current status of photodisruptive methods used in the treatment of pathologic changes in the vitreous space. In one series of 320 cases studied, 65% of the planned dissections of pathologic structures were successful. In a second series of 34 more complicated cases, the success rate was even lower.
F, Fankhauser +2 more
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Q-Switch Modulator as a Pulse Shaper in Q-Switched Fiber Lasers
IEEE Photonics Technology Letters, 2012An experimental study of several operation regimes of Q-switch modulator and their impact on the shape of Q-switched fiber laser pulses are discussed. It is shown that various Q-switch regimes including classical Q-switch, simultaneous Q-switch with quasi-mode-locking, or Q-switch with reduced interval between subpulses can be easily obtained using ...
Luis Escalante-Zarate +3 more
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Q-Switched Laser Goniopuncture
Archives of Ophthalmology, 1974A new approach to treatment of glaucoma has been tried, in which Q-switched laser bursts are delivered to the anterior chamber angle. Nonthermal effects emerge as an important factor in the biological action of such laser impulses. Laser-induced defects in the filtering zone produced by Q-switched impulses have been traced histologically.
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Optimum Q-switching Profile for Multipeak Suppression in Actively Q-switched Fiber Lasers
2021 IEEE Photonics Conference (IPC), 2021We numerically investigated an optimum leading-edge profile of the Q-switching window for multipeak suppression in actively Q-switched Yb-doped fiber lasers. Through comparison among four different profiles, our proposed, sinusoidal function profile (increasing slope) is shown to provide the complete multipeak suppression without loss of pulse-energy.
Jinho Lee, Ju Han Lee
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Q-switching technologies: limitations and opportunities: finding the right Q-switch
SPIE Proceedings, 2009Q-switches for laser ignition applications must meet a unique set of requirements. The inherent challenges to providing extremely reliable, compact, practical, and cost effective devices are daunting. The capabilities and limitations of various passive and active technologies will be explored and compared against generic laser driven ignition ...
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Triggering Passively Q-switched Microlasers
Advanced Solid-State Photonics (TOPS), 2005We demonstrate triggered operation of a passively Q-switched microlaser at 266nm. For repetition rates between 10Hz and 1kHz, the output performances (mainly pulse energy and build-up time) exhibit remarkably small variations.
J.P. Fève, N. Landru, O. Pacaud
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Q-switched Ti:Er:LiNbO3 waveguide laser
Optical and Quantum Electronics, 1999Q-switched operation of a Ti:Er:LiNbO3 waveguide laser has been achieved with up to 2.4 W pulse peak power (0.18μJ) at 2kHz repetition frequency with an intracavity Mach–Zehnder-type amplitude modulator. A theoretical model has been developed to describe the laser operation.
MAIO S. +4 more
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Q-switched unidirectional ring lasers
IEEE Journal of Quantum Electronics, 1969Traveling-wave operation of a ruby laser has been obtained by the use of a 5° Faraday rotator. Mode selection in a TW ruby laser with electrooptical Q switching is discussed.
A. Mikaeliane +4 more
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