From Femtosecond to Nanosecond Laser Microstructuring of Conical Aluminum Surfaces by Reactive Gas Assisted Laser Ablation
Abstract: A conical microstructure is one of the most versatile surface textures obtained by ultrashort laser micromachining. Besides an increased surface area, unique surface properties such as superhydrophilicity, increased absorptivity; and thermal emissivity can be tailored. On metals, usually ultrashort laser pulses in the femtosecond to low picosecond range are used to obtain these surface structures, whereas nanosecond laser pulses favor melting processes. Herein, we report on an investigation of reactive gas atmospheres such as oxygen, steam, and halogens during laser micromachining of aluminum with 6 ns laser pulses. At a reduced pressure of 20 hPa (air) with additional iodine vapor as reactive species, we found a perfectly microconical structured surface to be formed with nanosecond laser pulses. The resulting surface structures were proven to be free of residual halogens. The application of nanosecond instead of femtosecond laser pulses for the surface structuring process allows to apply significantly less complex laser sources.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
From Femtosecond to Nanosecond Laser Microstructuring of Conical Aluminum Surfaces by Reactive Gas Assisted Laser Ablation ; volume:21 ; number:15 ; year:2020 ; pages:1644-1652 ; extent:9
ChemPhysChem ; 21, Heft 15 (2020), 1644-1652 (gesamt 9)
- Urheber
- DOI
-
10.1002/cphc.202000418
- URN
-
urn:nbn:de:101:1-2022062109444337708412
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:28 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Rauh, Simon
- Wöbbeking, Karl
- Li, Mingji
- Schade, Wolfgang
- Hübner, Eike G.
Ähnliche Objekte (12)
Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Laser shock peening of NiTi alloy with femtosecond and nanosecond laser pulses
Subthreshold Nanosecond Laser
Author Correction: Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Femtosecond laser ablation
Femtosecond laser ablation
High aspect ratio diamond nanosecond laser machining
Nanosecond laser ablation and deposition of silicon
Influencing laser-accelerated ions by femtosecond-laser desorption
Femtosecond laser near field ablation
Femtosecond laser-induced herringbone patterns
Self-optimizing femtosecond semiconductor laser
Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Laser shock peening of NiTi alloy with femtosecond and nanosecond laser pulses
Subthreshold Nanosecond Laser
Author Correction: Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Femtosecond laser ablation
Femtosecond laser ablation
High aspect ratio diamond nanosecond laser machining
Nanosecond laser ablation and deposition of silicon
Influencing laser-accelerated ions by femtosecond-laser desorption
Femtosecond laser near field ablation
Femtosecond laser-induced herringbone patterns
Self-optimizing femtosecond semiconductor laser
Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Laser shock peening of NiTi alloy with femtosecond and nanosecond laser pulses
Subthreshold Nanosecond Laser
Author Correction: Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses
Femtosecond laser ablation
Femtosecond laser ablation
High aspect ratio diamond nanosecond laser machining
Nanosecond laser ablation and deposition of silicon
Influencing laser-accelerated ions by femtosecond-laser desorption
Femtosecond laser near field ablation
Femtosecond laser-induced herringbone patterns