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Advances in Laser Processing Technology of Materials
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Advances in Laser Processing Technology of Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 1210

Special Issue Editor

Dr. Annalisa Volpe

E-Mail Website
Guest Editor
1. Department of Physics “M. Merlin”, Polytechnic University of Bari, Via G. Amendola 173, 70125 Bari, Italy
2. National Research Council (CNR), Institute for Photonics and Nanotechnologies (IFN), Via G. Amendola, 173, 70125 Bari, Italy
Interests: fs-laser pulses; laser micromachining; surface treatment; microfluidic device; device fabrication; materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, entitled "Advances in Laser Processing Technology of Materials," invites potential authors to contribute articles and reviews that encompass the broad spectrum of laser–material interactions and the applications of laser technologies. Contributions dealing with laser processing of dielectrics, ceramics, and biomaterials are especially welcome.

Our goal is to provide a comprehensive platform for sharing cutting-edge research and insights into both fundamental laser–material interaction processes and the wide-ranging applications of laser technology.

Authors are encouraged to submit research articles that advance our understanding of the underlying physics, chemistry, and mechanics of laser–material interactions, either through new models or extensive simulations. These articles may explore topics from the most conventional applications such as laser ablation, welding, and surface modification to the most recent ones, such as additive manufacturing, the synthesis of nanomaterials, micro- and nano-manufacturing, and more.

Additionally, we welcome reviews that synthesize existing knowledge in laser processing technology, offering valuable perspectives on the current state of the field and potential future directions.

By fostering collaboration and knowledge exchange, this Special Issue aims to contribute to the ongoing progress of laser processing technology, benefitting researchers, engineers, and industries working with materials across the spectrum. Join us in sharing your expertise and discoveries in this exciting field!

Acknowledgments:
Dr. Raffaele De Palo <>

Dr. Annalisa Volpe
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • laser material processing
  • simulation of laser material processing
  • laser–matter interaction
  • laser manufacturing
  • laser welding
  • laser ablation
  • laser micro and nano-machining
  • metamaterials laser fabrication
  • ultrashort laser pulses

Published Papers (2 papers)

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Research

15 pages, 6025 KiB  
Article
Surface-Enhanced Raman Spectroscopy of Ammonium Nitrate Using Al Structures, Fabricated by Laser Processing of AlN Ceramic
by Petar Atanasov, Anna Dikovska, Rosen Nikov, Genoveva Atanasova, Katarzyna Grochowska, Jakub Karczewski, Naoki Fukata, Wipakorn Jevasuwan and Nikolay Nedyalkov
Materials 2024, 17(10), 2254; https://doi.org/10.3390/ma17102254 (registering DOI) - 10 May 2024
Viewed by 163
Abstract
This work presents results on laser-induced surface structuring of AlN ceramic and its application in Surface-Enhanced Raman Spectroscopy (SERS). The laser processing is performed by nanosecond pulses in air and vacuum. Depending on the processing conditions, different surface morphology can be obtained. The [...] Read more.
This work presents results on laser-induced surface structuring of AlN ceramic and its application in Surface-Enhanced Raman Spectroscopy (SERS). The laser processing is performed by nanosecond pulses in air and vacuum. Depending on the processing conditions, different surface morphology can be obtained. The ablation process is realized by ceramic decomposition as the formation of an aluminium layer is detected. The efficiency of the fabricated structures as active substrates in SERS is estimated by the ability of the detection of ammonium nitrate (NH4NO3). It is conducted for Raman spectrometer systems that operate at wavelengths of 514 and 785 nm where the most common commercial systems work. The obtained structures contribute to enhancement of the Raman signal at both wavelengths, as the efficiency is higher for excitation at 514 nm. The limit of detection (LOD) of ammonium nitrate is estimated to be below the maximum allowed value in drinking water. The analysis of the obtained results was based on the calculations of the near field enhancement at different conditions based on Finite Difference Time Domain simulation and the extinction spectra calculations based on Generalized Mie scattering theory. The structures considered in these simulations were taken from the SEM images of the real samples. The oxidation issue of the ablated surface was studied by X-ray photoelectron spectroscopy. The presented results indicated that laser structuring of AlN ceramics is a way for fabrication of Al structures with specific near-field properties that can be used for the detection of substances with high social impact. Full article
(This article belongs to the Special Issue Advances in Laser Processing Technology of Materials)
12 pages, 4689 KiB  
Article
Benefits of Femtosecond Laser 40 MHz Burst Mode for Li-Ion Battery Electrode Structuring
by Aurélien Sikora, Laura Gemini, Marc Faucon and Girolamo Mincuzzi
Materials 2024, 17(4), 881; https://doi.org/10.3390/ma17040881 - 14 Feb 2024
Viewed by 671
Abstract
In Li-ion batteries, ion diffusion kinetics represent a limitation to combine high capacity and a fast charging rate. To bypass this, textured electrodes have been demonstrated to increase the active surface, decrease the material tortuosity and accelerate the electrolyte wetting. Amongst the structuring [...] Read more.
In Li-ion batteries, ion diffusion kinetics represent a limitation to combine high capacity and a fast charging rate. To bypass this, textured electrodes have been demonstrated to increase the active surface, decrease the material tortuosity and accelerate the electrolyte wetting. Amongst the structuring technologies, ultrashort pulse laser processing may represent the key option enabling, at the same time, high precision, negligible material deterioration and high throughput. Here, we report a study on the structuring of electrodes with both holes and grooves reaching the metallic collector. Electrochemical models emphasize the importance of hole and line dimensions for the performances of the cell. We demonstrate that we can control the hole and line width by adjusting the applied fluence and the repetition rate. In addition, results show that it is possible to drill 65 µm-deep and ~15 µm-wide holes in nearly 100 µs resulting in up to 10,000 holes/s. To further reduce the takt time, bursts of 40 MHz pulses were also investigated. We show that bursts can reduce the takt time by a factor that increases with the average power and the burst length. Moreover, at comparable fluence, we show that bursts can shorten the process more than theoretically expected. Full article
(This article belongs to the Special Issue Advances in Laser Processing Technology of Materials)
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