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Antenna-like effect induced by surface defects upon ultrashort laser nanostructuring of silicon
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SYSNO ASEP 0522398 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Antenna-like effect induced by surface defects upon ultrashort laser nanostructuring of silicon Author(s) Liberatore, Chiara (FZU-D)
Hrabovský, Jan (FZU-D) ORCID
Mirza, M. Inam (FZU-D) ORCID
Bulgakov, Alexander (FZU-D) ORCID
Bulgakova, Nadezhda M. (FZU-D) ORCIDNumber of authors 5 Source Title MM Science Journal. - : MM publishing - ISSN 1803-1269
Roč. 2019, December (2019), s. 3594-3597Number of pages 4 s. Language eng - English Country CZ - Czech Republic Keywords ultrashort laser pulses ; silicon ; surface defects ; antenna-like effect ; light scattering ; periodic nanostructures Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_003/0000445 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 EID SCOPUS 85076606316 DOI 10.17973/MMSJ.2019_12_2019105 Annotation Silicon is one of the most used materials in nanostructure research and in a wide range of high-technological applications spanning from the fine chemical industry to medicine and to semiconductor electronics. The processes underlying laser-induced nanostructuring of Si surfaces are still not fully understood. In particular, it is not completely clear how individual surface defects contribute to generation of ordered structures. In this contribution, we report on the influence of random defects, which are present on silicon surfaces, on the formation of periodic surface structures by laser irradiation with femto- and picosecond pulses. A thorough analysis of the results leads to the conclusion that the surface defects act as antenna-like elements directing radiation along the sample surface and determining the location, directionality and quality of structuring. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0306897
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