Results 11 to 20 of about 104,780 (198)

Recent Developments of Quantum Dot Materials for High Speed and Ultrafast Lasers

open access: yesNanomaterials, 2022
Owing to their high integration and functionality, nanometer-scale optoelectronic devices based on III-V semiconductor materials are emerging as an enabling technology for fiber-optic communication applications.
Zhonghui Yao   +6 more
doaj   +1 more source

Advances of Research on Dual-Frequency Solid-State Lasers for Synthetic-Wave Absolute-Distance Interferometry

open access: yesSensors, 2023
Frequency-difference-stabilized dual-frequency solid-state lasers with tunable and large frequency difference have become an ideal light source for the high-accuracy absolute-distance interferometric system due to their stable multistage synthetic ...
Mingxing Jiao   +6 more
doaj   +1 more source

Mid-infrared III–V semiconductor lasers epitaxially grown on Si substrates

open access: yesLight: Science & Applications, 2022
There is currently much activity toward the integration of mid-infrared semiconductor lasers on Si substrates for developing a variety of smart, compact, sensors based on Si-photonics integrated circuits.
Eric Tournié   +8 more
doaj   +1 more source

Current Applications and Future Directions of Lasers in Endodontics: A Narrative Review

open access: yesBioengineering, 2023
The utilization of lasers has been regarded as a novel technique for the purposes of clinical use in the dental field. Recently, numerous studies have been conducted on the potential applications of laser therapy in endodontics.
Qin Huang   +4 more
doaj   +1 more source

Nueva modalidad de tratamiento de la fractura complicada de corona y raíz

open access: yesMedimay, 2005
Se presenta el caso de una fractura complicada oblicua de corona y raíz del incisivo central superior izquierdo, que se extiende hasta la porción superior del tercio gingival que involucra la pulpa dentaría de un diente con completa formación apical; se ...
LucÍa Pedroso Ramos   +1 more
doaj   +4 more sources

Carbon nanotube mode-locked fiber lasers: recent progress and perspectives

open access: yesNanophotonics, 2020
Carbon nanotubes (CNTs) possess remarkable nonlinear optical properties; a particular application is to function as a mode locker used in ultrafast fiber lasers to produce ultrashort optical pulses.
Dai Lilong   +7 more
doaj   +1 more source

An Assessment of the GEDI Lasers’ Capabilities in Detecting Canopy Tops and Their Penetration in a Densely Vegetated, Tropical Area

open access: yesRemote Sensing, 2022
The Global Ecosystem Dynamics Investigation (GEDI), specifically designed to measure vertical forest structures, has acquired, since April 2019, more than 35 billion waveforms of Earth’s surface on a nearly global scale. GEDI is equipped with 3 identical
Ibrahim Fayad   +2 more
doaj   +1 more source

Active waveguide Bragg lasers via conformal contact PDMS stamps

open access: yesScientific Reports, 2022
Lasing is observed in Bragg lasers formed through conformal contact of a patterned PDMS stamp with a plain active film, spincoated on glass. The thresholds, output efficiencies and spectral characteristics are compared to standard substrate patterned ...
Yun Li, Girish Lakhwani
doaj   +1 more source

Power stability of different lasers and its effect on the outcome of phase-stepping shearography experiments

open access: yesResults in Optics, 2023
We examined the effect and influence of power stability of different commonly used lasers on the outcome of phase-stepping shearographic experiments.
Kazi Monowar Abedin   +2 more
doaj   +1 more source

Ion-Doped Photonic Crystal Fiber Lasers

open access: yesFrontiers in Chemistry, 2021
Compared with conventional solid-state lasers, fiber lasers have the advantages of small size, simple cooling system, and good output beam quality, enabling them an extended service lifetime in industrialized environments.
Ya-Chong Hou   +15 more
doaj   +1 more source

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