dc.contributor.advisor | Lail, Brian A. | |
dc.contributor.author | Xiong, Di | |
dc.date.accessioned | 2019-04-30T17:13:09Z | |
dc.date.available | 2019-04-30T17:13:09Z | |
dc.date.created | 2019-05 | |
dc.date.issued | 2019-05 | |
dc.date.submitted | May 2019 | |
dc.identifier.uri | http://hdl.handle.net/11141/2787 | |
dc.description | Thesis (M.S.) - Florida Institute of Technology, 2019 | en_US |
dc.description.abstract | For any photonic-on-chip applications long propagation
waveguides are critical. The use of plasmon polaritons for near-infrared
and optical networks has been extensively studied for the purpose of
achieving long propagation lengths, however, due to plasmonic polariton
effects being negligible in mid- to long-wave infrared (IR) applications,
phonon polaritons are required. In recent years, extensive research has
been carried out on hexagonal boron nitride (h-BN), and it has been
found that h-BN has naturally occurring sub-range phonon volume-constrained hyperbolic phonon polaritons (HPhPs). The numerical
results in this thesis show both the long-range and short-range phonon
volume polaritons modes in h-BN. A hybrid long-range phononic
waveguide consisting of two identical dielectric cylinder wires
symmetrically placed on each side of the h-BN slab is coupled to the
long-range HPhP mode. Based on the analysis of coupled-mode theory
and computational finite element analysis, the modal characteristics of
hybrid long-range phonon-polariton waveguides are studied.
Subwavelength confinement can be achieved due to the strong coupling
between the high index cylindrical-waveguide mode and the HPhPs in
the h-BN thin film. The modal area ranges from 10̄⁻²λ2/0 to 10⁻¹λ2/0, while exhibiting propagation distances 7λ₀-370λ₀. | en_US |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | en_US |
dc.rights | CC BY-NC 4.0 | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/legalcode | en_US |
dc.subject | Hexagonal boron nitride | en_US |
dc.subject | Surface plasmon polariton | en_US |
dc.subject | Surface phonon polariton | en_US |
dc.subject | Hyperbolic phonon polariton | en_US |
dc.subject | Finite element method | en_US |
dc.subject | Hybrid long-range phonon polariton waveguide | en_US |
dc.title | Hybrid long-range mid-infrared hyperbolic phonon polariton waveguide using hexagonal boron nitride | en_US |
dc.type | Thesis | en_US |
dc.date.updated | 2019-04-17T18:32:15Z | |
thesis.degree.name | Master of Science in Electrical Engineering | en_US |
thesis.degree.level | Masters | en_US |
thesis.degree.discipline | Electrical Engineering | en_US |
thesis.degree.department | Computer Engineering and Sciences | en_US |
thesis.degree.grantor | Florida Institute of Technology | en_US |
dc.type.material | text | |