scholarly journals Higher‐Order Topological States in Surface‐Wave Photonic Crystals

2020 ◽  
Vol 7 (6) ◽  
pp. 1902724 ◽  
Author(s):  
Li Zhang ◽  
Yihao Yang ◽  
Zhi‐Kang Lin ◽  
Pengfei Qin ◽  
Qiaolu Chen ◽  
...  
Keyword(s):  
Surface Wave ◽  
Photonic Crystals ◽  
Higher Order ◽  
Topological States

Square-root-like higher-order topological states in three-dimensional sonic crystals

2021 ◽  
Author(s):  
Zhiguo Geng ◽  
Huanzhao Lv ◽  
Zhan Xiong ◽  
Yu-Gui Peng ◽  
Zhaojiang Chen ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Surface States ◽  
Higher Order ◽  
Square Root ◽  
Root Lattice ◽  
Third Order ◽  
Topological Materials ◽  
Topological States ◽  
Sonic Crystal ◽  
Sonic Crystals

Abstract The square-root descendants of higher-order topological insulators were proposed recently, whose topological property is inherited from the squared Hamiltonian. Here we present a three-dimensional (3D) square-root-like sonic crystal by stacking the 2D square-root lattice in the normal (z) direction. With the nontrivial intralayer couplings, the opened degeneracy at the K-H direction induces the emergence of multiple acoustic localized modes, i.e., the extended 2D surface states and 1D hinge states, which originate from the square-root nature of the system. The square-root-like higher order topological states can be tunable and designed by optionally removing the cavities at the boundaries. We further propose a third-order topological corner state in the 3D sonic crystal by introducing the staggered interlayer couplings on each square-root layer, which leads to a nontrivial bulk polarization in the z direction. Our work sheds light on the high-dimensional square-root topological materials, and have the potentials in designing advanced functional devices with sound trapping and acoustic sensing.

Surface wave effect on light scattering from one-dimensional photonic crystals

2007 ◽  
Vol 277 (2) ◽  
pp. 302-309 ◽  
Author(s):  
Aldo S. Ramírez-Duverger ◽  
Jorge Gaspar-Armenta ◽  
Raúl García-Llamas
Keyword(s):  
Light Scattering ◽  
Surface Wave ◽  
Photonic Crystals ◽  
Wave Effect ◽  
One Dimensional

scholarly journals Resolving power of surface wave polarization data for higher-order heterogeneities

1999 ◽  
Vol 138 (1) ◽  
pp. 205-220 ◽  
Author(s):  
Kazunori Yoshizawa ◽  
Kiyoshi Yomogida ◽  
Seiji Tsuboi
Keyword(s):  
Surface Wave ◽  
Higher Order ◽  
Resolving Power ◽  
Wave Polarization ◽  
Polarization Data

Surface wave-induced enhancement of the Goos-Hänchen effect in one-dimensional photonic crystals

JETP Letters ◽  
2010 ◽  
Vol 91 (8) ◽  
pp. 382-386 ◽  
Author(s):  
V. V. Moskalenko ◽  
I. V. Soboleva ◽  
A. A. Fedyanin
Keyword(s):  
Surface Wave ◽  
Photonic Crystals ◽  
One Dimensional ◽  
Wave Induced

Experimental demonstration of higher-order topological states in photonic metasurfaces

2020 ◽  
Author(s):  
A. Vakulenko ◽  
S. Kiriushechkina ◽  
M. Li ◽  
D. Zhirihin ◽  
X. Ni ◽  
...  
Keyword(s):  
Higher Order ◽  
Experimental Demonstration ◽  
Topological States

Observation of multiple higher-order stopgaps from three-dimensional chalcogenide glass photonic crystals

2008 ◽  
Vol 33 (20) ◽  
pp. 2311 ◽  
Author(s):  
Elisa Nicoletti ◽  
Guangyong Zhou ◽  
Baohua Jia ◽  
Michael James Ventura ◽  
Douglas Bulla ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Chalcogenide Glass ◽  
Three Dimensional ◽  
Higher Order
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