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Ultrafast laser ablation, intrinsic threshold, and nanopatterning of monolayer molybdenum disulfide [PDF]

open access: yesScientific Reports, 2022
Laser direct writing is an attractive method for patterning 2D materials without contamination. Literature shows that the ultrafast ablation threshold of graphene across substrates varies by an order of magnitude.
Joel M. Solomon   +9 more
doaj   +6 more sources

Investigation of the ultrashort pulsed laser processing of zinc at 515 nm: Morphology, crystallography and ablation threshold

open access: yesMaterials & Design, 2019
Bulk polycrystalline pure zinc is ablated in air using a picosecond laser source to perform single pulse and multi-pulse processing at a wavelength of 515 nm.
H. Mustafa   +2 more
doaj   +3 more sources

Near the Ablation Threshold of Copper Surface Which Irradiated by 10.6 µm CO2 Laser Beam [PDF]

open access: yesProgress in Physics of Applied Materials, 2022
In this paper, the ablation threshold of several metals has been considered by analogize the characteristics such as: fluence, specific heat of vaporization, and deposited energy.
Mohammad Sadegh Riahimadvar   +1 more
doaj   +1 more source

A Study of Femtosecond Laser Ablation Threshold on Several Materials Using Fiber Optic Beam Delivery System [PDF]

open access: yes한국정밀공학회지, 2020
A femtosecond laser is used in various fields such as microscale machining, OLED repair, micro 3D structure fabrication, and eye surgery. Particularly, because of non-thermal property, ablation and ablation threshold are the most representative ...
Junha Choi   +7 more
doaj   +1 more source

Investigation of Heat Accumulation in Femtosecond Laser Drilling of Carbon Fiber-Reinforced Polymer

open access: yesMicromachines, 2023
Carbon fiber-reinforced polymer (CFRP) has indispensable applications in the aerospace field because of its light weight, corrosion resistance, high specific modulus and high specific strength, but its anisotropy brings great difficulties to precision ...
Yaoyao Li   +3 more
doaj   +1 more source

Interaction Energy Dependency on Pulse Width in ns NIR Laser Scanning of Silicon

open access: yesMicromachines, 2022
Laser ablation of semiconductor silicon has been extensively studied in the past few decades. In the ultrashort pulse domain, whether in the fs scale or ps scale, the pulse energy fluence threshold in the ablation of silicon is strongly dependent on the ...
Shunping Li   +3 more
doaj   +1 more source

Picosecond laser microvia drilling of ABF material using MHz burst mode

open access: yesMaterials Research Express, 2023
We report on a comprehensive study of laser percussion microvia drilling of Ajinomoto build-up film (ABF) material using an ultrashort pulsed laser in MHz burst mode.
Daniel Franz   +7 more
doaj   +1 more source

Laser–Material Interactions of High-Quality Ultrashort Pulsed Vector Vortex Beams

open access: yesMicromachines, 2021
Diffractive multi-beams based on 1 × 5 and 2 × 2 binary Dammann gratings applied to a spatial light modulator (SLM) combined with a nanostructured S-wave plate have been used to generate uniform multiple cylindrical vector beams with radial and azimuthal
Yue Tang   +6 more
doaj   +1 more source

Ablation of solids by femtosecond lasers: Ablation mechanism and ablation thresholds for metals and dielectrics [PDF]

open access: yesPhysics of Plasmas, 2002
The mechanism of ablation of solids by intense femtosecond laser pulses is described in an explicit analytical form. It is shown that at high intensities when the ionization of the target material is complete before the end of the pulse, the ablation mechanism is the same for both metals and dielectrics. The physics of this new ablation regime involves
Gamaly, Eugene G   +3 more
openaire   +3 more sources

Experimental Investigation on Ablation of 4H-SiC by Infrared Femtosecond Laser

open access: yesMicromachines, 2022
Femtosecond laser ablation has become one of the important structural processing methods for the third-generation semiconductor material, silicon carbide (SiC), and it is gradually being employed in the manufacture of microelectromechanical systems and ...
Lukang Wang   +4 more
doaj   +1 more source

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