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Micromachines
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Laser Bionic Fabrication
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Laser Bionic Fabrication

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 5527

Special Issue Editor

Prof. Dr. Feng Chen

E-Mail Website
Guest Editor
Department of Electronic Science and Engineering, Xian Jiaotong University, 28 West Xianning Road, Xian 710049, China
Interests: laser micro- and nano-fabrication; bionic manufacturing; ultrafast laser processing

Special Issue Information

Dear Colleagues,

In recent decades, laser material processing has witnessed a vibrant development as regards its unique application in high-precision manufacturing of functional micro- and nanodevices and systems. In particular, in applications in the bionic and industrial manufacturing fields, ultrafast laser can now realize complex 3D patterning and weave a wide range of structures on the micro- and nanoscales with advanced functions for bionic/biological functional structures and surfaces, biomaterials and bionic materials, robotics, motion systems and artificial intelligence, nature-inspired energy systems, industrial sensor and biochips, etc. If we want to explore the capabilities of advanced laser manufacturing in terms of sophisticated applications, we must first develop a better understanding of laser materials processing with material surfaces, interfaces, nanostructures, and device manufacturing technology. 

This Special Issue is to gather latest research breakthroughs in the areas of development of ultrafast laser manufacturing, especially its applications in smart structures and devices, bionic materials, and biochips for exploring bionic technology and advancing industrial applications. This issue will bring together innovations in both bio-inspired and industrial manufacturing and the important research results from researchers around the world. The purpose of this issue is to collect recent advances by researchers in laser material processing, bionic fabrication, and its applications and share research results to spark scientific exchanges on an international level.

Topics include but are not limited to the keywords listed below:

  1. Laser bionic fabrication;
  2. Laser material processing;
  3. Laser-based additive manufacturing;
  4. Laser micro-and nanopatterning;
  5. Ultrafast laser–material interactions;
  6. Surface microstructuring/modification.

Prof. Dr. Feng Chen
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. Micromachines is an international peer-reviewed open access monthly 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.

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Published Papers (2 papers)

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Research

9 pages, 1740 KiB  
Article
Femtosecond Laser Fabrication of Submillimeter Microlens Arrays with Tunable Numerical Apertures
by Tongzhen Yang, Minjing Li, Qing Yang, Yu Lu, Yang Cheng, Chengjun Zhang, Bing Du, Xun Hou and Feng Chen
Micromachines 2022, 13(8), 1297; https://doi.org/10.3390/mi13081297 - 12 Aug 2022
Cited by 6 | Viewed by 2220
Abstract
In recent years, the demand for optical components such as microlenses has been increasing, and various methods have been developed. However, fabrication of submillimeter microlenses with tunable numerical aperture (NA) on hard and brittle materials remains a great challenge using the current methods. [...] Read more.
In recent years, the demand for optical components such as microlenses has been increasing, and various methods have been developed. However, fabrication of submillimeter microlenses with tunable numerical aperture (NA) on hard and brittle materials remains a great challenge using the current methods. In this work, we fabricated a variable NA microlens array with submillimeter size on a silica substrate, using a femtosecond laser-based linear scanning-assisted wet etching method. At the same time, the influence of various processing parameters on the microlens morphology and NA was studied. The NA of the microlenses could be flexibly adjusted in the range of 0.2 to 0.45 by changing the scanning distance of the laser and assisted wet etching. In addition, the imaging and focusing performance tests demonstrated the good optical performance and controllability of the fabricated microlenses. Finally, the optical performance simulation of the prepared microlens array was carried out. The result was consistent with the actual situation, indicating the potential of the submillimeter-scale microlens array prepared by this method for applications in imaging and detection. Full article
(This article belongs to the Special Issue Laser Bionic Fabrication)
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10 pages, 2015 KiB  
Article
Design of Metal-Based Slippery Liquid-Infused Porous Surfaces (SLIPSs) with Effective Liquid Repellency Achieved with a Femtosecond Laser
by Zheng Fang, Yang Cheng, Qing Yang, Yu Lu, Chengjun Zhang, Minjing Li, Bing Du, Xun Hou and Feng Chen
Micromachines 2022, 13(8), 1160; https://doi.org/10.3390/mi13081160 - 22 Jul 2022
Cited by 6 | Viewed by 2534
Abstract
Slippery liquid-infused porous surfaces (SLIPSs) have become an effective method to provide materials with sliding performance and, thus, achieve liquid repellency, through the process of infusing lubricants into the microstructure of the surface. However, the construction of microstructures on high-strength metals is still [...] Read more.
Slippery liquid-infused porous surfaces (SLIPSs) have become an effective method to provide materials with sliding performance and, thus, achieve liquid repellency, through the process of infusing lubricants into the microstructure of the surface. However, the construction of microstructures on high-strength metals is still a significant challenge. Herein, we used a femtosecond laser with a temporally shaped Bessel beam to process NiTi alloy, and created uniform porous structures with a microhole diameter of around 4 µm, in order to store and lock lubricant. In addition, as the lubricant is an important factor that can influence the sliding properties, five different lubricants were selected to prepare the SLIPSs, and were further compared in terms of their sliding behavior. The temperature cycle test and the hydraulic pressure test were implemented to characterize the durability of the samples, and different liquids were used to investigate the possible failure under complex fluid conditions. In general, the prepared SLIPSs exhibited superior liquid repellency. We believe that, in combination with a femtosecond laser, slippery liquid-infused porous surfaces are promising for applications in a wide range of areas. Full article
(This article belongs to the Special Issue Laser Bionic Fabrication)
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