Wechselwirkung und Zusammenhang der zugrundeliegenden Mechanismen von LIPSS und optischer Pinzette
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Philipps-Universität Marburg
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Abstract
The present work investigates the relation between the phenomena of laser-induced
periodic surface structures (LIPSS) and optical tweezer. Both phenomena are well
known in the literature, their fundamental mechanisms however are usually examined
separate from each other. Results presented here indicate that LIPSS and
optical tweezer are based on the same mechanism, respectively LIPSS are a product
of an optical tweezer effect acting on a surface.
To make a statement about the relation and interactions between LIPSS formation
and optical tweezer, both phenomena are initially examined separat from
each other. Alongside the literature known LIPSS another surface structure is
studied, the single gold wires (SGW), which are presumably generated by an optical
tweezer acting on a surface. The novel SGW are investigated with regard
to their formation parameters and characteristics as well as their mechanism of
origin. Furthermore, additional transition structures originating from a mutual
interference of LIPSS and SGW formation are presented and investigated with
regards to their mechanism of origin. A final chapter compares the underlying
mechanisms of LIPSS and SGW. Therefore, the forces, which are involved in the
formation of these surface structures, are discussed as well as the issue of whether
LIPSS and SGW are the result of one and the same mechanism or originate from
two different mechanisms.
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Dates
Created: 2020Issued: 2020-08-18Updated: 2020-08-18
Faculty
Fachbereich Chemie
Publisher
Philipps-Universität Marburg
Language
ger
Data types
DoctoralThesis
Keywords
LIPSSOptical Tweezersurface structuringLaser
DFG-subjects
OberflächenbearbeitungOptische PinzetteLaser
DDC-Numbers
540
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Pfeifer, Erik: Wechselwirkung und Zusammenhang der zugrundeliegenden Mechanismen von LIPSS und optischer Pinzette. : Philipps-Universität Marburg 2020-08-18. DOI: https://doi.org/10.17192/z2020.0464.