Special Issue "Laser Micro- and Nano- Processing"

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A special issue of Micromachines (ISSN 2072-666X).

Deadline for manuscript submissions: closed (31 July 2014)

Special Issue Editors

Guest Editor
Dr. Maria Farsari
IESL-FORTH, 100 N.Plastira str., Vassilika Vouton 70013 Heraklion, Crete, Greece
Website: http://www.iesl.forth.gr/people/person.aspx?id=16
E-Mail: mfarsari@iesl.forth.gr
Phone: +30 2810 391342
Fax: +30 2810 391518
Interests: nonlinear optics; nanophotonics; 3D laser printing; laser-based additive manufacturing; metamaterials

Guest Editor
Prof. Dr. Costas Fotakis
IESL-FORTH, 100 N.Plastira str., Vassilika Vouton 70013 Heraklion, Crete, Greece
Website: http://www.iesl.forth.gr/people/person.aspx?id=116
E-Mail: fotakis@iesl.forth.gr
Phone: +30 2810 391540
Fax: +30 2810 391542
Interests: light-matter interactions; laser materials processing; biophotonics

Special Issue Information

Dear Colleagues,

Numerous recent technological advances rely on controllable micro- and nano-fabrication techniques to improve the performance of devices in various applications (e.g., in biomedicine, communications, and energy harvesting). Lasers are uniquely suited for a wide variety of fabrication applications at both the micro- and the nano- scales, in both the production and research environments. In light of this, we announce a Special Issue on "Laser Micro- and Nano Processing" and invite original contributions. We seek not only to report recent developments, but also to mold the future of the field. Example topics include matter interactions, direct write processes, ultra-short pulse laser processing, surface treatment, and 3-D micro- and nano-fabrication.

We look forward to receiving your contributions.

Prof. Dr. Costas Fotakis
Dr. Maria Farsari
Guest Editors

Submission

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. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as 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 refereed through a 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 quarterly 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 500 CHF (Swiss Francs). English correction and/or formatting fees of 250 CHF (Swiss Francs) will be charged in certain cases for those articles accepted for publication that require extensive additional formatting and/or English corrections.


Keywords

  • Laser-Matter Interaction
  • Fundamental aspects (dynamics, modeling)
  • Nanotechnology
  • Direct write processes (MAPLE DW, LIFT, etc.)
  • Ultra-short pulse laser processing
  • VUV laser processing
  • Surface treatment (texturing, cleaning, annealing, modification, etc.)
  • Micro-patterning and micro-structuring
  • Micro-machining
  • 3-D micro- and nano-fabrication
  • Drilling and cutting
  • Micro-forming
  • Lithography (including EUV sources and applications)
  • Manufacture of micro devices and systems
  • Film deposition and synthesis of advanced materials
  • Nano- and micro-particles
  • Medical and biological applications
  • Photochemistry
  • Glass/Ceramic processing

Published Papers (10 papers)

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p. 943-953
by ,  and
Micromachines 2014, 5(4), 943-953; doi:10.3390/mi5040943
Received: 9 September 2014; in revised form: 20 October 2014 / Accepted: 21 October 2014 / Published: 27 October 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
p. 825-838
by , , ,  and
Micromachines 2014, 5(4), 825-838; doi:10.3390/mi5040825
Received: 21 August 2014; in revised form: 25 September 2014 / Accepted: 26 September 2014 / Published: 30 September 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
p. 839-858
by , , , , , , , , , ,  and
Micromachines 2014, 5(4), 839-858; doi:10.3390/mi5040839
Received: 30 July 2014; in revised form: 24 September 2014 / Accepted: 25 September 2014 / Published: 30 September 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
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p. 756-765
by , ,  and
Micromachines 2014, 5(3), 756-765; doi:10.3390/mi5030756
Received: 1 August 2014; in revised form: 10 September 2014 / Accepted: 12 September 2014 / Published: 22 September 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
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p. 697-710
by  and
Micromachines 2014, 5(3), 697-710; doi:10.3390/mi5030697
Received: 18 August 2014; in revised form: 4 September 2014 / Accepted: 4 September 2014 / Published: 11 September 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
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p. 505-514
by , , , , ,  and
Micromachines 2014, 5(3), 505-514; doi:10.3390/mi5030505
Received: 2 July 2014; in revised form: 24 July 2014 / Accepted: 25 July 2014 / Published: 6 August 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
p. 472-485
by , , ,  and
Micromachines 2014, 5(3), 472-485; doi:10.3390/mi5030472
Received: 10 June 2014; in revised form: 9 July 2014 / Accepted: 16 July 2014 / Published: 22 July 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
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p. 408-419
by , ,  and
Micromachines 2014, 5(3), 408-419; doi:10.3390/mi5030408
Received: 28 May 2014; in revised form: 24 June 2014 / Accepted: 26 June 2014 / Published: 2 July 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
p. 341-358
by , , , , ,  and
Micromachines 2014, 5(2), 341-358; doi:10.3390/mi5020341
Received: 31 March 2014; in revised form: 4 June 2014 / Accepted: 4 June 2014 / Published: 11 June 2014
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(This article belongs to the Special Issue Laser Micro- and Nano- Processing)
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p. 359-372
by  and
Micromachines 2014, 5(2), 359-372; doi:10.3390/mi5020359
Received: 23 April 2014; in revised form: 4 June 2014 / Accepted: 4 June 2014 / Published: 11 June 2014
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Type of Paper: Article
Title:
Optimization of Direct Laser-written Structural Niches to Control Mesenchymal Stromal Cell Fate in Culture
Authors: Manuela T. Raimondi, Michele M. Nava, Shane M. Eaton, Arianna Bernasconi, Krishna C. Vishnubhatla, Giulio Cerullo and Roberto Osellame
Affiliation:
Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133, Italy; E-Mail: giulio.cerullo@fisi.polimi.it (G. C.)
Abstract:
We applied direct laser writing to fabricate 3D synthetic niches arranged in complex patterns to study the effect of mechano-topological parameters on morphology, renewal and differentiation of rat mesenchymal stromal cells. Niches were formed in a photoresist with low auto-fluorescence, which enabled the clear visualization of the fluorescence emission of the markers used for biological diagnostics within the internal niche structure. The niches were structurally stable in culture up to three weeks. At 3 weeks of expansion in the niches, cell density increased by almost 10-fold and resulted 67% greater than in monolayer culture. Evidence of lineage commitment was observed in monolayer culture surrounding the structural niches, and within cell aggregates, but not inside the niches. Thus, structural niches were able not only to direct stem cell homing and colony formation, but also to guide aggregate formation, providing increased surface-to-volume ratios and space for stem cells to adhere and renew, respectively.
Keywords:
mesenchymal stem cell; niche; scaffold; proliferation; direct laser writing; photoresist; femtosecond laser

Title: Impacts of Ambient and Ablation Plasmas on Short- and Ultrashort-pulse Laser Processing of Surfaces
Authors
: Nadezhda M. Bulgakova, Alexei N. Panchenko, Vladimir P. Zhukov, Sergey I. Kudryashov, Antonio Pereira, Wladimir Marine, Danijela Rostohar, and Alexander V. Bulgakov
Affiliation:
Institute of Thermophysics SB RAS, 1 Lavrentyev Ave., 630090 Novosibirsk, Russia; E-mail: nbul@itp.nsc.ru
Abstract:
More than 5 decades passed from the invention of laser during which laser-matter interaction has become an essential integral technique for modern technologies of material processing, direct writing of integrated optical devices, tailoring properties of existing materials, and synthesis of new nanostructured materials. The phenomenon of laser-matter interaction is extremely complicated. It involves many physical and chemical processes, some of which take place simultaneously while others can be separated in time and space or partially overlap. Huge efforts have been made by scientific community to get insight into various intriguing effects occurring during and after laser irradiation of solids. However still many features of laser-matter interaction are not fully understood and there is a plenty of space for fundamental research which can yield in technology innovations.
One of such topics which still remain poorly studied is plasma impact on the overall phenomenon of laser-matter interaction and its particular features such as influence on surface quality and efficiency from excited plasma reradiation, back flux of energetic plasma species, and massive material redeposition. In this paper, we analyse plasma aspects which go beyond a simple consideration of the well-known effect of plasma shielding of laser radiation. The following effects are considered: ambient gas ionization above the target on material processing with formation of a “plasma pipe”; back heating of the target by both laser-driven ambient and ablation plasma (through conductive and radiative heat transfer); plasma chemical effects on surface processing (including microstructure growth on liquid metals); complicated dynamics of ablation plasma flow interacting with ambient gas that can result in substantial redeposition of material around the ablation spot. Together with a review summarizing our main to-date achievements and outlining research directions, we present new results underlining importance of laser plasma dynamics and photoionization of ambient environment upon laser processing of materials.

Title: Multilayers Birefringence Photo-induced by Femtosecond Laser in Silica Glass
Authors:
Matthieu Lancry, R. Desmarchelier, K. Cook, J. Canning and B. Poumellec
Affiliation:
LPCES—ICMMO—Bât 410, Université Paris-Sud XI, 91405 Orsay Cedex France; E-Mail: matthieu.lancry@u-psud.fr
A
bstract: Recently, we show that femtosecond laser induced “nanogratings” consist of thin regions with a low refractive index (Dn= −0.15) due to the formation of nanoporous silica surrounded by regions with a positive index change. In this paper, we investigated a wide range of laser parameters to achieve the highest retardance value within a single layer i.e., 350 nm at a wavelength of 546 nm and we demonstrated that these porous nanogratings and related retardance can be continuously cumulated in the laser propagation direction to achieve retardance values higher than 1600 nm. This opens the door to use these nanostructures as building blocks for novel optical elements based on strong retardance and whose properties like slow axis orientation can be spatially varied in the propagation direction (e.g., like a twisted nematic liquid crystals but made in fused silica).


Last update: 17 April 2014

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