Results 21 to 30 of about 3,577 (181)

Molecular Response of Skin to Micromachining by Femtosecond Laser

open access: yesFrontiers in Physics, 2021
Pulsed lasers at the near infrared (NIR) range have been widely used in dermatology. Ultrashort pulsed picosecond lasers are found with the specific ability of very effective activation of skin repair and remodeling along with significant photodamage ...
Yutong Wang   +4 more
doaj   +1 more source

Laser Micromachining of Glass, Silicon, and Ceramics

open access: yesAdvances in Materials Science and Engineering, 2015
A brief review is focused on laser micromachining of materials. Micromachining of materials is highly widespread method used in many industries, including semiconductors, electronic, medical, and automotive industries, communication, and aerospace.
L. Rihakova, H. Chmelickova
doaj   +1 more source

Femtosecond laser induced damage threshold and incubation in l-threonine aminoacid crystal

open access: yesOptical Materials: X, 2023
l-threonine aminoacid crystals exhibit high second-order optical nonlinearities that can be exploited for second harmonic generation, optical parametric amplification, and optical parametric oscillation.
L.K. Nolasco   +5 more
doaj   +1 more source

Laser Processing of Transparent Wafers with a AlGaN/GaN Heterostructures and High-Electron Mobility Devices on a Backside

open access: yesMicromachines, 2021
Sapphire and silicon carbide substrates are used for growth of the III-N group heterostructures to obtain the electronic devices for high power and high frequency applications.
Simonas Indrišiūnas   +3 more
doaj   +1 more source

Molecular Dynamics Simulation Study of Liquid-Assisted Laser Beam Micromachining Process

open access: yesJournal of Manufacturing and Materials Processing, 2018
Liquid Assisted Laser Beam Micromachining (LA-LBMM) process is an advanced machining process that can overcome the limitations of traditional laser beam machining processes. This research involves the use of a Molecular Dynamics (MD) simulation technique
Vivek Anand Menon, Sagil James
doaj   +1 more source

Micromachining of Invar Foils with GHz, MHz and kHz Femtosecond Burst Modes

open access: yesMicromachines, 2020
In this work, a burst mode laser is used for micromachining of 20 µm–250 µm thick Invar (Fe64/Ni36) foils. Holes were drilled by firing multiple pulses transversely onto the sample without moving the beam (percussion drilling).
Simas Butkus   +4 more
doaj   +1 more source

Excimer Laser Three-Dimensional Micromachining Based on Image Projection and the Optical Diffraction Effect

open access: yesApplied Sciences, 2018
An excimer laser three-dimensional (3D) micromachining system is proposed based on a mask image projection method and the optical diffraction effect. The effects of optical diffraction on the laser machining rate are evaluated using a hole-arrayed mask ...
Yu-Hsuan Hung   +2 more
doaj   +1 more source

Experimental and Modeling Study of Liquid-Assisted—Laser Beam Micromachining of Smart Ceramic Materials

open access: yesJournal of Manufacturing and Materials Processing, 2018
Smart ceramic materials are next generation materials with the inherent intelligence to adapt to change in the external environment. These materials are destined to play an essential role in several critical engineering applications.
Mayur Parmar, Sagil James
doaj   +1 more source

High performance laser induced plasma assisted ablation by GHz burst mode femtosecond pulses

open access: yesOpto-Electronic Advances
High performance laser micromachining based on the combination of GHz burst mode femtosecond pulses irradiation and laser induced plasma assisted ablation can open a new avenue for high-quality and high-efficiency micromachining of single crystalline ...
Jingbo Yin, Yulong Zhao, Minghui Hong
doaj   +1 more source

Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals

open access: yesMolecules, 2021
Ultrafast lasers micromachining results depend on both the processing parameters and the material properties. The obtained thermal effects are negligible if a good combination of processing parameters is chosen.
Liliana Cangueiro   +2 more
doaj   +1 more source

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