Results 261 to 270 of about 2,654,873 (296)

A double-electrode-pair-pulsed laser

Applied Physics Letters, 1980
A transversely excited atmosphere carbon dioxide laser with two sets of electrode in the optical cavity is described. The device produces high-intensity pulse pairs with time separations as short as 20×10−6 sec. This is accomplished without high-speed gas flow.
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Laser thrombolysis using long pulse frequency-doubled Nd:YAG lasers

Lasers in Surgery and Medicine, 1999
Laser thrombolysis is a means for clearing blood clots in occluded arteries. Many researchers have studied the mechanisms of clot ablation, and research clinicians have used the technique to treat myocardial infarction with a number of different laser systems. Specifically, a 1-microsec pulsed dye laser has been used clinically to remove blood clots in
J A, Viator, S A, Prahl
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Holographic Double Pulse Yag Lasers

SPIE Proceedings, 1986
Author describes a doubled pulse yag laser manufactured by SOPRA and indicates information of results reached by the Laboratoire de SAINT-LOUIS. Described double pulse yag laser is issued of monomode frequency doubled yag laser and can be used in Holography as a very attractive source.
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Ultrashort-pulse laser irradiation of metal films: the effect of a double-peak laser pulse

Applied Physics A, 2010
Using molecular-dynamics simulation coupled to a homogeneous model for the electron gas, we study the response of an Al thin film on short-pulse laser irradiation. Laser pulses are considered to have a double-peak structure consisting of two Gaussian pulses; the time delay between the two pulses is varied. The temporal dependence of the energy transfer
Yudi Rosandi, Herbert M. Urbassek
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Strongly coupled intracavity frequency-doubled pulsed lasers

Optics Letters, 2004
Simple expressions for the peak power, pulse energy, and pulse length of strongly coupled intracavity frequency-doubled lasers are presented. For nonlinear coupling values that correspond to many common systems, these expressions agree well with the results of numerical integration of the rate equations.
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Internal silicon laser processing with picosecond double pulses

Optics Letters
Nonlinear propagation effects present major challenges for inscription inside silicon using ultrashort laser pulses. To overcome these limitations, we employ single-digit picosecond double pulses with picosecond pulse-to-pulse delays, enabling repeatable in-volume modifications. The double-pulse benefits are most pronounced for
Markus Blothe, Jesvin Joseph, Maxime Chambonneau, Stefan Nolte   +3 more
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Periodic pulse oscillation in an intracavity-doubled Nd:YVO_4 laser

Applied Optics, 1996
We report periodic pulse oscillation in an intracavity-doubled Nd:YVO(4) laser. The pulse oscillation is caused by alternate oscillation between two modes. We investigated improvement of green-light power with the pulse oscillation in a Nd:YVO(4) laser.
H, Nagai, M, Kume, A, Yoshikawa, K, Itoh, C, Hamaguchi   +4 more
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Double-pulsed TEA CO 2 laser

SPIE Proceedings, 1991
ABSTRACT In this paper, a original designed TEA CO2 Laser with simple construction and easy to assemble(disassemble) as its design advantages is introduced. A double continuously adjusting photo—pulseswith O-..' 150,us time separations under a single excitation can be obtained by our laser.
Xiangyen Li, Zhengbang Shi, Ning Sun
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Frequency-doubling pulse compressor for picosecond high-power neodymium laser pulses

Optics Letters, 1992
We have measured as much as an approximately fivefold compression and 240% power conversion when type II frequency doubling is used with 1.2-ps Nd laser pulses and a 1.4-ps predelay is introduced between the e and o pulses at the input of a KDP crystal.
Y, Wang, B, Luther-Davies
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Double-Pulse Laser-Driven Jets on OMEGA

Astrophysics and Space Science, 2006
A double-pulse laser drive is used to create episodic supersonic plasma jets that propagate into a low density ambient medium. These are among the first laser experiments to generate pulsed outflow. The temporal laser-intensity profile consists of two 1-ns square pulses separated by 9.6 ns.
S. Sublett, J. P. Knauer, I. V. Igumenshchev, A. Frank, D. D. Meyerhofer   +4 more
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