Influence of defects on structural colours generated by laser-induced ripples
- The colourisation of metallic surface which appears due to periodic surface patterns induced by ultrashort laser pulses is studied. Ripples due to the sub-micrometer size of their period act as a diffraction grating, generating structural colours. Carefully chosen strategy of the laser spot scanning allows us to mimic the nanostructures responsible for structural colours of some flowers on the metal substrate. We investigate the correlation between the colourising effects and the artificially-induced defects in the ripples structure and show that these defects can make the colours observable in a larger range of viewing angles. Further we address the influence of the processing parameters on the spectral profile of the reflected light.
| Author: | Stella MaragkakiGND, Christian A. SkaradzinskiGND, Ralf NettORCiDGND, Evgeny L. GurevichORCiDGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-81687 |
| DOI: | https://doi.org/10.1038/s41598-019-56638-x |
| Parent Title (English): | Scientific reports |
| Publisher: | Springer Nature |
| Place of publication: | Berlin |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2021/06/18 |
| Date of first Publication: | 2020/01/09 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | Materials science; Open Access Fonds; Optics and photonics |
| Volume: | 10 |
| Issue: | Artikel 53 |
| First Page: | 53-1 |
| Last Page: | 53-9 |
| Note: | Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum. |
| Institutes/Facilities: | Lehrstuhl für Laseranwendungstechnik |
| Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften, Maschinenbau |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Maschinenbau |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
