Antenna-like effect induced by surface defects upon ultrashort laser nanostructuring of silicon

Liberatore, Chiara; Hrabovský, Jan; Mirza, M. Inam; Bulgakov, Alexander V.; Bulgakova, Nadezhda M.

doi:https://dx.doi.org/10.17973/MMSJ.2019_12_2019105

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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 V. (FZU-D)_ORCID Bulgakova, Nadezhda M. (FZU-D)_{ORCID, RID}
Number of authors	5
Source Title	MM Science Journal. - : MM publishing - ISSN 1803-1269 Roč. 2019, December (2019), s. 3594-3597
Number 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	https://doi.org/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

Number of the records: 1