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@PHDTHESIS{Dittrich:646119,
author = {Dittrich, Guido and Huber, Patrick},
othercontributors = {Universitätsbibliothek, TUHH and Universitätsbibliothek,
TUHH and Petrov, Alexander},
title = {{A}n optical study of nanofluidics in mesoporous silicon},
school = {TUHH},
type = {Dissertation},
publisher = {TUHH Universitätsbibliothek},
reportid = {PUBDB-2026-00721},
pages = {1},
year = {2025},
note = {Dissertation, TUHH, 2025},
abstract = {This thesis presents a novel method for studying capillary
imbibition and vapor sorption in mesoporous silicon (PSi)
with white light spectroscopy. By
Fast-Fourier-Transformation of thin film interference and
parallel analysis of an optical microcavity within the
porous layer, it achieves high precision in monitoring fluid
dynamics. The research includes a constriction model for
capillary imbibition, the resolution of liquid menisci and a
percolation mechanism for vapor sorption. Moreover, a new
rapid and non-destructive technique is introduced for
assessing pore pathways of PSi, by calulating the pore
geometry from liquid dynamics and capillary pressure.Diese
Arbeit stellt eine neuartige Methode zur Untersuchung der
kapillaren Imbibition und Dampfsorption in mesoporösem
Silizium (PSi) mit Weißlichtspektroskopie vor. Durch die
Fast-Fourier-Transformation von Dünnschichtinterferenz und
parallele Analyse einer optischen Mikrokavität wird eine
hohe Präzision bei der Messung der Fluiddynamik erreicht.
Die Forschung umfasst ein Flaschenhalsmodell für die
kapillare Imbibition, die Auflösung von
Flüssigkeitsmenisken und einen Perkolationsmechanismus für
die Dampfsorption. Darüber hinaus wird eine schnelle und
zerstörungsfreie Technik zur Auflösung des
Porenradiusverlaufs in PSi eingeführt, der aus
Flüssigkeitsdynamiken und dem Kapillardruck errechnet
wird.},
keywords = {mesoporous silicon (Other) / nanofluidics (Other) /
nanostructure (Other) / photonic crystal (Other) /
spectroscopy (Other) / thin film interference (Other) /
capillary filling (Other) / imbibition (Other) / Natural
Sciences and Mathematics::530: Physics::530.4: States of
Matter::530.42: Fluid Physics (Other) / Technology::620:
Engineering (Other)},
cin = {CIMMS},
cid = {I:(DE-H253)CIMMS-20211022},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)11},
doi = {10.15480/882.16131},
url = {https://bib-pubdb1.desy.de/record/646119},
}