Results 11 to 20 of about 2,051,538 (245)

Comparative treatments of a green tattoo ink with Ruby, Nd:YAG nano- and picosecond lasers in normal and array mode

open access: yesScientific Reports, 2022
The tattoos removal has become an issue upon spread of the tattooing practice worldwide and hindsight regrets. Lasers are typically used for the purpose, though some colours such as green are considered “recalcitrant” to the treatment.
Daniele Cecchetti   +7 more
doaj   +1 more source

The layer by layer selective laser synthesis of ruby [PDF]

open access: yesScience of Sintering, 2010
In the work, features of the layer-by-layer selective laser synthesis (SLS) of ruby from an Al2O3-Cr2O3 mixture are considered depending on the irradiation power, the laser beam traverse speed, the height and amount of the backfill of powder layers.
Vlasova M.   +7 more
doaj   +1 more source

Diode pumped compact single frequency cw ruby laser

open access: yesJournal of Physics Communications, 2023
Investigations on 405 nm diode-pumped cw ruby lasers operated in less than 3 mm plane-parallel resonators are reported. With 2.5 mm long ruby crystals TEM _00 emission with output powers up to 40 mW are achieved.
W Luhs, B Wellegehausen
doaj   +1 more source

The analysis of damage threshold in the ruby laser interaction with copper and aluminium [PDF]

open access: yesHemijska Industrija, 2010
Nondestructive methods are dominant in diagnosing the status and protection of all kinds of contemporary industrial object, as well as object of industrial heritage.
Katavić Boris T.   +5 more
doaj   +1 more source

Study the Effect the Laser Intensity on the Behavior of the Kinetic Energy, Drift Energy and the Total Energy of the Silver Plasma [PDF]

open access: yesEngineering and Technology Journal, 2020
The particle-in-cell plasma simulation program in two dimensions was developed to display the properties of silver plasma under the effect of Ruby laser 694.3 nm with different intensities; 1012Wcm-2, 1015 Wcm-2, 1018 Wcm-2, and 1020 Wcm-2.
Esam Tawfiq
doaj   +1 more source

Diode pumped cw ruby laser

open access: yesOSA Continuum, 2019
Cw laser oscillation of ruby at 694 nm in linear and ring resonators is reported for the first time, pumped with a 1 W laser diode at 405 nm as well as 445 nm. The ruby laser operates at room temperature with a threshold of 200 mW at 405 nm and 400 mW at
W. Luhs, B. Wellegehausen
semanticscholar   +1 more source

Interaction of ruby laser with carbon fibrous materials [PDF]

open access: yesHemijska Industrija, 2007
Carbon fibrous materials are interesting because of their good properties and numerous possible applications. The characteristics of these materials can be programmed by careful selection of the modification process parameters. The laser technique can be
Stašić Jelena M.   +3 more
doaj   +1 more source

Characterization of Hydrous Mineral Inclusions in Ruby and Sapphire by Infrared Spectroscopy and Microscopic Confocal Laser Raman Spectroscopy

open access: yesYankuang ceshi, 2019
BACKGROUND There are water molecules and hydrous mineral inclusions in natural ruby and sapphire. The hydrous minerals disappear easily after heat treatment, which causes the physical and chemical properties of ruby and sapphire to change.
NING Pei-ying   +6 more
doaj   +1 more source

DETERMINATION OF THE STRUCTURAL STATE AND STABILITY OF THE LASER CRYSTALLIZED Cd1-xМnxTe CRYSTAL SURFACE

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2020
The modified surface layers of the Cd1-xMnxTe crystals were obtained by the laser recrystallization of the crystal surface with the use of millisecond and nanosecond ruby ​​lasers.
Victor Strebezhev   +7 more
doaj   +1 more source

Special Issue on Solid State Lasers Materials, Technologies and Applications

open access: yesApplied Sciences, 2018
Even though more than half a century has already passed since the first demonstration of laser action in ruby crystal, solid-state lasers are still a hot research topic.[...]
Federico Pirzio
doaj   +1 more source

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