Post-graduate theses
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Identifier |
000465803 |
Title |
Study of polypropylene microcavities using whispering gallery mode resonation |
Alternative Title |
Μελέτη κοιλοτήτων πολυπροπυλενίου με χρήση τρόπων εγκλωβισμού ψιθυρισμού |
Author
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Γιούνη, Πολυξένη Α.
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Thesis advisor
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Πισσαδάκης, Σταύρος
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Reviewer
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Κομίνης, Ιωάννης
Αποστολόπουλος, Βασίλης
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Abstract |
Whispering gallery modes (WGMs) exhibit unique characteristics, involving
high Q factor and sensitivity to refractive index changes. These parameters
provide useful information about the material’s physical parameters, such as its
dimensions, or its mechanical properties under the application of axial strain.
The latter, reflects the basis of our experimental work, where light confinement
within polypropylene cylindrical microresonators is extensively examined. The
main purpose of our experiments is the investigation of WGM spectral behavior
under the material’s mechanical deformation, in order to determine the photo
– elastic properties of polypropylene.
Whispering gallery mode resonances are studied for the first time in
polypropylene cylindrically symmetric microcavities. Spectra for both TE and
TM polarization states are obtained. Spectral shifts under applied strain are
used for determining the strain optical coefficient of polypropylene.
Light propagation and mode formation inside polypropylene resonators is also
simulated, with the aid of proper computational programs, in order to estimate
the modal eigenstates. These are characterized based on their modal indices
and selected WGM spectral description. WGM resonance response under the
application of mechanical deformation is extensively studied in this work,
providing a non – destructive method for the determination of the material’s
photo - elastic parameters. An insight of polypropylene’s photo – elastic
properties is considered very important in the field of applied Photonics,
yielding in the application of future photonic devices based on polypropylene’s
characteristics.
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Language |
English |
Subject |
Birefringence |
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Photo-elasticity |
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Polypropylene |
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Resonance |
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Διπλοθλαστικότητα |
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Πολυπροπυλένιο |
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Συντονισμός |
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Φωτο-ελαστικότητα |
Issue date |
2024-07-11 |
Collection
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School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses
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Type of Work--Post-graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/c/b/9/metadata-dlib-1719845693-920008-7713.tkl
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Views |
203 |