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Topologically Protected Refraction of Robust Kink Mode from Photonic Crystal into Free Space
Başlık:
Topologically Protected Refraction of Robust Kink Mode from Photonic Crystal into Free Space
Yazar:
Li, Yandong, author.
ISBN:
9780438046825
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (47 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Gennady Shvets Committee members: Joel D. Brock.
Özet:
Similar to those electronic topological insulators that are based on the quantum valley Hall effect, valley photonic topological insulators (PTIs) guide unidirectional electromagnetic modes. A recent research studies how that unidirectional mode couples into the free space, aiming to incorporate this PTI into integrated photonic structures. Here we focus on light-refraction from a two-dimensional valley PTI into the free space. We understand this PTI as a waveguide, model its refraction as the radiation of an array of dipoles, and demonstrate several ways to engineer its dispersion relation. We also confirm the nontrivial topology of this PTI by unveiling its non-zero Berry curvature at the valley. This study may benefit future research on photonic topological behaviors and realizing novel photonic phenomenon.
Notlar:
School code: 0058
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(693499.1) | 693499-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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