Editorial: Ultrafast laser direct writing self-organized microstructures
Juan Song
Ye Dai- 1Jiangsu University, Zhenjiang, China
- 2School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
- 3Department of Physics, Shanghai University, Shanghai, China
Editorial on the Research Topic
Ultrafast laser direct writing self-organized microstructures
Based on the ablation and the melting of the targeted materials, some self-organized structures like laser-induced periodic surface structures (LIPSS) on the surface or volume nanogratings in the bulk are readily formed in the focused region depending on the characteristics of the incident beam, material properties and even experimental environment. Indeed, since the first experimental observation of LIPSS on semiconductor surfaces by Birnbaum (1965) as well as a large amount of eminent theoretical and experimental work conducted with laser duration of a few nanosecond, many investigations have been done in this field. In 1982 Van Driel et al. reported LIPSS which is related to the wavelength (
In this Research Topic,Lin et al., as in, have reported the effect of different combinations of laser fluences and pulse number on the formation of femtosecond laser induced LIPSS on Titanium. They revealed a new phenomenon: LIPSS appeared blurred and disappeared in the middle of the laser fluence region which can be attributed to the two ablation region under different laser fluence (ultrafast non-thermal and thermal ablation processes). Their results provided a powerful guide for preparation of highly controllable and high-quality LIPSS by avoiding the risk of the LIPSS period disappearing. In addition, Jia et al., presented the birefringence effect of ultrafast laser induced periodic nanostructures on F-doped tin oxide (FTO) film with refractive index difference ∆n = ne-no reaching a maximum of 0.21 and the maximum phase retardance of 135 nm obtained by 515 nm laser direct writing. Also, a large-area periodic nanostructures on FTO film was efficiently fabricated by 515 nm laser direct writing via a cylindrical lens demonstrating its potential application as a quarter-wave plate of 515 nm light. On the other hand, in Werr et al., ultra-short-pulse laser filamentation was presented as an appealing technology for float glass cutting due to the advantages of a small heat-affected zone, a quasi-non-gap cut and the possibility to free form cut. A micro-crack-formation and -propagation model along a filament line was proposed. Based on this model, Schematic parameter dependent crack development could be predicted, which is very meaningful for cleaving guidance. Moreover, a Ge-doped ternary chalcogenide glass Ge23Sb7S70 was systematically investigated for ultrafast laser induced self-organized modifications both at the surface and in the volume, as in Torun et al.. These self-organized nanostructures were found to be correlated to photo-oxidation, photo-darkening, and restructuring of the glass network. Tailoring of self-organized structures with laser inscription parameters may enable the direct-write of functional 2.5 dimensional or 3D structures inside these infrared materials.
We hope that these findings in theoretical models and practical applications will promote further research and development of self-organized structures in laser cutting, microoptics and all-optical switching devices.
Author contributions
JS; Writing—Original Draft Professor YD; Writing—Review Editing.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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References
Birnbaum M. (1995). Semiconductor surface damage produced by ruby lasers. Journal of Applied Physics 36 (11), 3688–3689. doi:10.1063/1.1703071
Bonse J. M., Jm W., Kw B., Esser N., Kautek W. (2002). Femtosecond laser irradiation of indium phosphide in air: raman spectroscopic and atomic force microscopic investigations. Applied Surface ence 202 (3-4), 272–282. doi:10.1016/S0169-4332(02)00948-0
Bonse J., Krüger J., Höhm S., Rosenfeld A. (2012). Femtosecond laser-induced periodic surface structures. Journal of Laser Applications 24 (4), 042006. doi:10.2351/1.4712658
Epperlein N., Menzel F., Schwibbert K., Koter R., Bonse J., Sameith J., et al. (2017). Influence of femtosecond laser produced nanostructures on biofilm growth on steel. Applied Surface Science 418, 420–424. doi:10.1016/j.apsusc.2017.02.174
Her T. H. (2011). “Femtosecond-laser-induced periodic self-organized nanostructures,” in Comprehensive nanoscience and technology: Nanofabrication and devices (Amsterdam: Elsevier) 4, 277–314. doi:10.1016/B978-0-12-374396-1.00130-6
Keywords: ultrafast laser, LIPSS, microstructure, self-organization, nanograting
Citation: Song J and Dai Y (2022) Editorial: Ultrafast laser direct writing self-organized microstructures. Front. Phys. 10:1022122. doi: 10.3389/fphy.2022.1022122
Received: 18 August 2022; Accepted: 15 September 2022;
Published: 30 September 2022.
Edited and reviewed by:
Lorenzo Pavesi, University of Trento, ItalyCopyright © 2022 Song and Dai. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Juan Song, juansong@ujs.edu.cn; Ye Dai, yedai@shu.edu.cn