Photonic waveguides represent a cornerstone in the field of photonics, facilitating the controlled propagation of light (Box2). These structures are capable of guiding light waves through the modulation of refractive indices, creating pathways that allow for the efficient transmission of optical signals....
When breaking the z-inversion symmetry, the former bands interact with each other22 through magneto-electric coupling, resulting in a topological photonic crystal (TPC) with a complete band gap. To explicate the topological properties of the band gap, we calculate Z2 topological invariants ...
of a particle by a potentialSmatrix for the scattering of electromagnetic waves#Topological phases in photonic systems#Edge modes with time reversal symmetry breaking#Waveguides#Ferrite tubes#Waves in a periodic system: photonic crystals#TM modes in a periodic lattice#Effective model for quadratic ...
Distributed feedback organic lasing in photonic crystals. Frontiers of Optoelectronics, 2020, 13(1): 12–17 Google Scholar Li H J, Ma B Q. Research development on fabrication and optical properties of nonlinear photonic crystals. Frontiers of Optoelectronics, 2020, 13(1): 18–34 MathSciNet ...
Topological photonic states in gyromagnetic photonic crystals: Physics, properties, and applications Topological photonic states (TPSs) as a new type of waveguide state with one-way transport property can resist backscattering and are impervious to defects... J Chen,ZY Li - 《中国物理b:英文版》 被...
摘要: Optical bound states in the continuum (BICs) have recently been realized in photonic crystal slabs, where the disappearance of out-of-plane radiation turns leaky resonances into guided modes with...关键词: optical properties of low-dimensional, mesoscopic, and nanoscale materials and ...
Recently, symmetry engineering of electromagnetic modes in metamaterials has gained a lot of attention as an effective approach to tailor optical properties and produce novel responses and functionality1,2. This methodology has been especially valuable in the context of topological photonics, where spatial...
Using suitably designed electromagnetic media (metamaterials) we theoretically demonstrate a photonic analogue of a topological insulator. We show that metacrystals-superlattices of metamaterials with judiciously designed properties-provide a platform for designing topologically non-trivial photonic states, ...
Y. Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates. Phys. Rev. B 83, 205101 (2011). Article Google Scholar Xiao, D., Chang, M.-C. & Niu, Q. Berry phase effects on electronic properties. Rev. Mod. Phys. 82, 1959 (2010). ...
However, very different from photonic crystals, such spatial dispersion is here induced at the subwavelength scale by multiple resonant scattering. In the case of simple lattices like the triangular one, this effect is weak and mostly gives rise to isotropic properties, a reason why metamaterials ...