Universal numerical calculation method for the Berry curvature and Chern numbers of typical topological photonic crystals
Sign Up to like & getrecommendations! Published in 2020 at "Frontiers of Optoelectronics"
DOI: 10.1007/s12200-019-0963-9
Abstract: Chern number is one of the most important criteria by which the existence of a topological photonic state among various photonic crystals can be judged; however, few reports have presented a universal numerical calculation method… read more here.
Keywords: chern numbers; method; universal numerical; topological photonic ... See more keywords
Frequency dependent wave routing based on dual-band valley-Hall topological photonic crystal
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abe335
Abstract: Previous studies on the propagation direction of valley topological edge states mainly focus on the matching between orbital angular momentum of the excitation source and specific pseudo-spin state of valley edge mode at certain frequency… read more here.
Keywords: wave routing; frequency; edge states; topological photonic ... See more keywords
Band relaxation triggered by modulational instability in topological photonic lattices
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/accabb
Abstract: Modulational instability in topological photonic lattices enables the selective population of energy bands and generation of steady-state wavefields with well-defined topological invariants. This provides a way to measure bulk topological invariants, which determine the number… read more here.
Keywords: modulational instability; instability topological; photonic lattices; topological photonic ... See more keywords
Manipulating the light-matter interaction in a topological photonic crystal heterostructure.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.405434
Abstract: We theoretically and numerically investigate the ligh-matter interaction in a classic topological photonic crystal (PhC) heterostructure, which consists of two opposite-facing 4-period PhCs spaced by a dielectric layer. Due to the excitation of topological edge… read more here.
Keywords: matter interaction; light matter; matter; photonic crystal ... See more keywords
Observation and control of pseudospin switching in a finite-width topological photonic crystal.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.440108
Abstract: Finite-size effect plays a significant role in topology photonics not to mention in reality all experimental setups are in finite-size. A photonic bandgap is opened in the topological edge state dispersion if a topological photonic… read more here.
Keywords: topological photonic; finite width; finite size; photonic crystal ... See more keywords
Topological photonic crystal fibers and ring resonators.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.387043
Abstract: With an exact recursive approach, we study photonic crystal fibers and resonators with topological features induced by Aubry-Andre-Harper cladding modulation. We find nontrivial gaps and edge states at the interface between regions with different topological… read more here.
Keywords: resonators topological; topological photonic; photonic crystal; fibers ring ... See more keywords
Topological rainbow based on graded topological photonic crystals.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.419271
Abstract: Topological photonic crystal provides a robust platform for nanophotonic devices. However, few reports have been found to realize multiple frequency routing based on topological photonic states, which have restricted further applications in the field of… read more here.
Keywords: photonic crystals; rainbow based; based graded; topological rainbow ... See more keywords
Multimode interference in topological photonic heterostructure.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.460722
Abstract: In this Letter, topological photonic heterostructures, which are composed of finite-size photonic crystals with different topological phases, are proposed. The coupled topological edge states (CTESs), which originate from the coupling between topological edge states, are… read more here.
Keywords: multimode interference; interference; edge states; topological edge ... See more keywords
Terahertz topological photonic crystals with dual edge states for efficient routing.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.492336
Abstract: Topological photonic crystals with robust pseudo-spin and valley edge states have shown promising and wide applications in topological waveguides, lasers, and antennas. However, the limited bandwidth and intrinsic coupling properties of a single pseudo-spin or… read more here.
Keywords: pseudo spin; photonic crystals; edge states; topological photonic ... See more keywords
Recent progress in topological waveguides and nanocavities in a semiconductor photonic crystal platform [Invited]
Sign Up to like & getrecommendations! Published in 2021 at "Optical Materials Express"
DOI: 10.1364/ome.415128
Abstract: Topological photonics provides a novel route for designing and realizing optical devices with unprecedented functionalities. Topological edge states, which are supported at the boundary of two photonic systems with different band topologies, enable robust light… read more here.
Keywords: progress; photonic crystals; semiconductor photonic; optical devices ... See more keywords
Switchable slow light rainbow trapping and releasing in strongly coupling topological photonic systems
Sign Up to like & getrecommendations! Published in 2019 at "Photonics Research"
DOI: 10.1364/prj.7.001075
Abstract: We design and present a switchable slow light rainbow trapping (SLRT) state in a strongly coupling topological photonic system made from a magneto-optical photonic crystal waveguide channel. The waveguide channel supports slow light states with… read more here.
Keywords: state; slow light; light rainbow; switchable slow ... See more keywords