Combining Ultrafast Laser Texturing and Laser Hardening to Enhance Surface Durability by Improving Hardness and Wear Performance
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Engineering Materials"
DOI: 10.1002/adem.202401183
Abstract: Aluminum alloy 7075 is utilized widely across marine, aerospace, and automotive sectors. However, its surface wear resistance has hindered its application in certain tribological environments. Addressing this challenge, the current study examines a hybrid laser… read more here.
Keywords: laser; surface; wear resistance; texturing laser ... See more keywords
Near‐Field‐Regulated Ultrafast Laser Supra‐Wavelength Structuring Directly on Ultrahard Metallic Glasses
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Materials"
DOI: 10.1002/adma.202405766
Abstract: The ultrafast‐laser‐matter interactions enable “top‐down” laser surface structuring, especially for materials difficult to process, with “bottom‐up” self‐organizing features. The subwavelength scenarios of laser‐induced structuring are improved in defects and long‐range order by applying positive/negative feedbacks.… read more here.
Keywords: laser; field; ultrafast laser; supra wavelength ... See more keywords
Scoring molecular wires subject to an ultrafast laser pulse for molecular electronic devices.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of computational chemistry"
DOI: 10.1002/jcc.27126
Abstract: A nonionizing ultrafast laser pulse of 20-fs duration with a peak amplitude electric-field ±E = 200 × 10-4 a.u. was simulated. It was applied to the ethene molecule to consider its effect on the electron dynamics, both during the… read more here.
Keywords: laser; ultrafast laser; molecular electronic; electronic devices ... See more keywords
Photonic Chip Based on Ultrafast Laser-Induced Reversible Phase Change for Convolutional Neural Network
Sign Up to like & getrecommendations! Published in 2025 at "Nano-Micro Letters"
DOI: 10.1007/s40820-025-01693-5
Abstract: Programmable photonic chips based on ultrafast laser-induced phase change is fabricated for photonic computing. Based on the integrated photonic chip, photonic convolutional neural networks are built to implement machine learning algorithm, and images recognition task… read more here.
Keywords: ultrafast laser; phase change; change; laser induced ... See more keywords
Ultrafast laser processing of copper: A comparative study of experimental and simulated transient optical properties
Sign Up to like & getrecommendations! Published in 2017 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2017.02.070
Abstract: Abstract In this paper, we present ultrafast measurements of the complex refractive index for copper up to a time delay of 20 ps with an accuracy read more here.
Keywords: processing copper; comparative study; copper; ultrafast laser ... See more keywords
Thermal and mechanical limitations to processing resolution in volume non-diffractive ultrafast laser structuring
Sign Up to like & getrecommendations! Published in 2021 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2021.151170
Abstract: Abstract The minimum feature size and spatial resolution are key factors for ultrafast laser structuring, defining the resulting function of the structured material. With the aim to improve the processing resolution achievable for non-diffractive beams,… read more here.
Keywords: resolution; processing resolution; ultrafast laser; non diffractive ... See more keywords
Ultrafast laser dynamics of metal organic frameworks/TiO2 nano-arrays hybrid composites for energy conversion applications
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Energy Chemistry"
DOI: 10.1016/j.jechem.2018.02.017
Abstract: Abstract Herein, we report the victorious synthesis of metal-organic frameworks (MOFs) on TiO2 nanotubes (NTs) using a layer-by-layer (LbL) approach. Highly crystalline and homogenous thin films of MOFs were grown and characterized using XRD, SEM,… read more here.
Keywords: spectroscopy; organic frameworks; ultrafast laser; energy ... See more keywords
Size effects on phonon response of bismuth nanoislands to ultrafast laser excitation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physics and Chemistry of Solids"
DOI: 10.1016/j.jpcs.2019.06.014
Abstract: Abstract The lattice dynamics of bismuth nanoislands induced by ultrafast laser excitation is studied by ultrafast electron diffraction. The decay times of the Bragg peak intensity depend on the diffraction order. For 5-nm flat nanoislands,… read more here.
Keywords: bismuth nanoislands; laser excitation; excitation; ultrafast laser ... See more keywords
Influence of pulse repetition rate on morphology and material removal rate of ultrafast laser ablated metallic surfaces
Sign Up to like & getrecommendations! Published in 2019 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2018.12.009
Abstract: Abstract Ultrafast laser ablation is an efficient method for precise micro-machining. Thanks to the recent development of high repetition rate ultrafast lasers, high speed laser scanning of surfaces is more and more employed to generate… read more here.
Keywords: repetition; material removal; ultrafast laser; rate ... See more keywords
Hydrodynamic modeling and time-resolved imaging reflectometry of the ultrafast laser-induced ablation of a thin gold film
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2020.106067
Abstract: Abstract The ablation of thin metal films using ultrafast laser radiation represents a standard processing procedure in laser technology. However, looking closer to the resulting structures, the arising topology deviates strongly from the expected one.… read more here.
Keywords: laser; ablation; topology; ablation thin ... See more keywords
First-principles research on mechanism of sub-band absorption of amorphous silicon induced by ultrafast laser irradiation
Sign Up to like & getrecommendations! Published in 2021 at "Results in physics"
DOI: 10.1016/j.rinp.2021.104941
Abstract: Abstract Black silicon fabricated by ultrafast laser is a promising material for infrared detection. However, the structure–property relationship in laser-fabricated amorphous Si is still unclear. By first-principles calculations, different distorted local structures are revealed depending… read more here.
Keywords: principles research; first principles; ultrafast laser; silicon ... See more keywords