dc.rights.license | CC-BY-NC-ND | |
dc.contributor.advisor | Goedheer, Wim | |
dc.contributor.author | Albada, B.L. van | |
dc.date.accessioned | 2013-10-04T17:01:00Z | |
dc.date.available | 2013-10-04 | |
dc.date.available | 2013-10-04T17:01:00Z | |
dc.date.issued | 2013 | |
dc.identifier.uri | https://studenttheses.uu.nl/handle/20.500.12932/15092 | |
dc.description.abstract | Ellipsometry is a non-contact, extremely accurate technique for
characterising thin films, which over the past decades have become
vital in a host of applications. However, ellipsometry suffers from a
number of disadvantages, the most inconvenient of which are that it
requires line-of-sight access to the sample, and demands careful calibra-
tion of any optical components. Succeeding in building an ellipsometer
that does not require line-of-sight could severely reduce especially in
situ measurement complexity, as well as allowing a single ellipsometer
to be timeshared over multiple setups, forming a significant cost re-
duction. In this work, an ellipsometry setup that uses optical fibers
in lieu of direct line-of-sight is investigated. We demonstrate that the
output polarisation states from such a full-fiber ellipsometer form a
well-defined band on the Poincaré sphere, which is preserved and can
be seen as a generalised polarisation state. Changes to this generalised
polarisation state can then be used to obtain the ellipsometric angles Ψ
and ∆ from a given sample. Provided the setup is well-characterised,
the accuracy is comparable to that of conventional ellipsometry. | |
dc.description.sponsorship | Utrecht University | |
dc.format.extent | 1258231 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.title | Full-fiber ellipsometry: the (im)possibility of eliminating line-of-sight | |
dc.type.content | Master Thesis | |
dc.rights.accessrights | Open Access | |
dc.subject.keywords | ellipsometry, polarisation, optical fibers, surface characterisation | |
dc.subject.courseuu | Nanomaterials: Chemistry and Physics | |