Academic Journal
Pulse-on-demand operation for precise high-speed UV laser microstructuring
| العنوان: | Pulse-on-demand operation for precise high-speed UV laser microstructuring |
|---|---|
| المؤلفون: | Kočica, Jernej Jan, Mur, Jaka, Didierjean, Julien, Guillossou, Arnaud, Saby, Julien, Petelin, Jaka, Mincuzzi, Girolamo, Petkovšek, Rok |
| المصدر: | Micromachines, vol. 14, no. 4, 843, 2023. ; ISSN: 2072-666X |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute (MDPI) |
| سنة النشر: | 2023 |
| المجموعة: | University of Ljubljana: Repository (RUJ) / Repozitorij Univerze v Ljubljani |
| مصطلحات موضوعية: | fiber lasers, UV lasers, nanosecond lasers, pulse-on-demand, material processing, vlakenski laserji, UV laserji, nanosekundni laserji, pulzi na zahtevo, obdelava materialov, info:eu-repo/classification/udc/535:621.7+621.9 |
| الوصف: | Laser microstructuring has been studied extensively in the last decades due to its versatile, contactless processing and outstanding precision and structure quality on a wide range of materials. A limitation of the approach has been identified in the utilization of high average laser powers, with scanner movement fundamentally limited by laws of inertia. In this work, we apply a nanosecond UV laser working in an intrinsic pulse-on-demand mode, ensuring maximal utilization of the fastest commercially available galvanometric scanners at scanning speeds from 0 to 20 m/s. The effects of high-frequency pulse-on-demand operation were analyzed in terms of processing speeds, ablation efficiency, resulting surface quality, repeatability, and precision of the approach. Additionally, laser pulse duration was varied in single-digit nanosecond pulse durations and applied to high throughput microstructuring. We studied the effects of scanning speed on pulse-on-demand operation, single- and multipass laser percussion drilling performance, surface structuring of sensitive materials, and ablation efficiency for pulse durations in the range of 1–4 ns. We confirmed the pulse-on-demand operation suitability for microstructuring for a range of frequencies from below 1 kHz to 1.0 MHz with 5 ns timing precision and identified the scanners as the limiting factor even at full utilization. The ablation efficiency was improved with longer pulse durations, but structure quality degraded. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf; text/url |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/ARRS//P2-0270; info:eu-repo/grantAgreement/ARRS//L2-3171; https://repozitorij.uni-lj.si/IzpisGradiva.php?id=145314; https://repozitorij.uni-lj.si/Dokument.php?id=168136&dn=; https://repozitorij.uni-lj.si/Dokument.php?id=168135&dn=; https://plus.cobiss.net/cobiss/si/sl/bib/149330179; http://hdl.handle.net/20.500.12556/RUL-145314 |
| الاتاحة: | https://repozitorij.uni-lj.si/IzpisGradiva.php?id=145314 https://repozitorij.uni-lj.si/Dokument.php?id=168136&dn= https://repozitorij.uni-lj.si/Dokument.php?id=168135&dn= https://plus.cobiss.net/cobiss/si/sl/bib/149330179 https://hdl.handle.net/20.500.12556/RUL-145314 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.2A456909 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |