Results 1 to 10 of about 35,670 (298)

Automatic compensation of thermal drift of laser beam through thermal balancing based on different linear expansions of metals

open access: yesResults in Physics, 2019
We present a technique for compensating laser beam up-shifting induced by the hot air with temperature-gradient in a 2D-scaning laser radar for monitoring the intruder in the railway system, in which the laser beam is scanning at a height only a few ...
Song Yang   +6 more
doaj   +1 more source

Recent Development of High-Energy Short-Pulse Lasers with Cryogenically Cooled Yb:YAG

open access: yesApplied Sciences, 2022
High-power solid-state lasers are among the hot research directions at the forefront of laser research and have major applications in industrial processing, laser-confined nuclear fusion, and high-energy particle sources. In this paper, the properties of
Yuan Sui   +3 more
doaj   +1 more source

Er,Cr:YSGG and 980nm diode lasers influence dentin surface volume after cariogenic challenge: in vitro study [PDF]

open access: yesBrazilian Oral Research
This study aimed to evaluate the influence of the Er,Cr:YSGG irradiation and 980-nm diode lasers on the surface roughness (SR) and volume loss (VL) of dentin subjected to cariogenic challenge.
Fernanda Rodrigues Borges Amaral GUARATO   +8 more
doaj   +1 more source

Characteristics and Recent Development of Fluoride Magneto-Optical Crystals

open access: yesMagnetochemistry, 2023
Magneto-optical materials are the fundamental component of Faraday isolators; therefore, they are significantly important for solid-state laser systems.
Zhonghan Zhang   +6 more
doaj   +1 more source

Compact Polygonal Active-Mirror Laser With Composite Nd:YAG/YAG Gain Medium

open access: yesIEEE Photonics Journal, 2017
A compact polygonal active-mirror (PAM) laser with composite Nd: YAG/YAG multithin-disk gain medium has been demonstrated with total internal reflection scheme. Five Nd:YAG thin disks with a neodymium concentration of 0.7 at.% and thickness
Yanzhong Chen   +9 more
doaj   +1 more source

The use of the Er:YAG 2940nm laser associated with amorolfine lacquer in the treatment of onychomycosis [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2013
Onychomycosis is a common disease, accounting for up to 50% of all ungual pathologies. We have been developing a clinical trial (ClinicalTrials.gov: NCT01528813) using a 2940nm Er:YAG laser to fractionally ablate human nails in vivo, aiming to increase ...
Orlando Oliveira de Morais   +5 more
doaj   +1 more source

Crystalline waveguides with carbon nanomaterials for miniaturized pulsed lasers - INVITED [PDF]

open access: yesEPJ Web of Conferences, 2023
This presentation discusses the recent results on miniaturized pulsed solid-state lasers by utilizing femtosecond-laser inscribed crystalline channel waveguides and carbon-nanomaterial-based saturable absorbers.
Bae Ji Eun, Rotermund Fabian
doaj   +1 more source

InGaN-LD-Pumped ${\rm Pr}^{3+}$: ${\rm LiYF}_{4}$ Continuous-Wave Laser at 915 nm

open access: yesIEEE Photonics Journal, 2014
We demonstrate the first InGaN-LD-pumped room temperature and continuous-wave laser operation of a Pr3+: LiYF4 crystal at 915 nm. A maximum output power up to 78 mW with a laser slope efficiency of about 17% is obtained. The round-trip optical losses are
Biao Qu   +9 more
doaj   +1 more source

Generation of a 578-nm Yellow Laser by the Use of Sum-Frequency Mixing in a Branched Cavity

open access: yesIEEE Photonics Journal, 2016
A compact, continuous-wave, solid-state laser at 578 nm has been demonstrated, for the first time to our knowledge, by use of intracavity sum-frequency mixing from a branched cavity with an LBO crystal. Two gain mediums, namely, the Nd:YAG single crystal
Jianming Yang   +9 more
doaj   +1 more source

A Diode-Pumped Dual-Wavelength Tm, Ho: YAG Ceramic Laser

open access: yesIEEE Photonics Journal, 2016
A diode-pumped dual-wavelength CW Tm, Ho: YAG ceramic laser was demonstrated for the first time to our knowledge. A maximum output power of ∼1.2 W with a beam quality factor ${\rm{M}}^{2}\,= \,1.19$ has been generated from the 3at.% Tm, 0 ...
Pian Liu   +6 more
doaj   +1 more source

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