Brillouin Zone Folding Metasurface for Near Perfect Circular Dichroism
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202401027
Abstract: Planar chiral metasurfaces have demonstrated their proficiency in manipulating chiral light‐matter interactions for diverse applications. Nevertheless, it proves arduous to simultaneously attain elevated quality factors and potent chirality response. In this work, a planar chiral… read more here.
Keywords: zone folding; brillouin zone; circular dichroism; bzf bics ... See more keywords
ARPES study of the epitaxially grown topological crystalline insulator SnTe(111)
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Electron Spectroscopy and Related Phenomena"
DOI: 10.1016/j.elspec.2016.10.003
Abstract: Abstract SnTe is a prototypical topological crystalline insulator, in which the gapless surface state is protected by a crystal symmetry. The hallmark of the topological properties in SnTe is the Dirac cones projected to the… read more here.
Keywords: topological crystalline; arpes study; crystalline insulator; brillouin zone ... See more keywords
Lasing from Brillouin Zone Folding Guided Resonances.
Sign Up to like & getrecommendations! Published in 2025 at "ACS nano"
DOI: 10.1021/acsnano.5c08419
Abstract: High-quality factor (Q-factor) nanophotonic cavities are critical components in applications such as lasing and nonlinear optics. However, to obtain out-of-plane lasing emission and a low lasing threshold, the lasing mode must fulfill the contradictory requirement… read more here.
Keywords: zone folding; brillouin zone; guided resonances; lasing brillouin ... See more keywords
Chiral quasi-bound states in the continuum via Brillouin zone folding
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0269369
Abstract: Chiral quasi-bound states in the continuum (q-BICs) provide a way to investigate light–matter interactions. Currently, the chiral response is fundamentally constrained by the rapid decay of quality (Q-) factors with symmetry breaking, making the robustness… read more here.
Keywords: zone folding; states continuum; brillouin zone; quasi bound ... See more keywords
Incommensurate instability and diffuse scattering at Brillouin zone boundary in Zr-rich lead zirconate titanate
Sign Up to like & getrecommendations! Published in 2019 at "Ferroelectrics"
DOI: 10.1080/00150193.2019.1569987
Abstract: Abstract Detailed study of the X-ray diffuse scattering in the paraelectric phase of the PbZr0.985Ti0.015O3 was carried out. We concentrated on the analysis of the scattering peculiarities in the vicinities of M- and R- points… read more here.
Keywords: zone boundary; brillouin zone; diffuse scattering; scattering brillouin ... See more keywords
Symmetry-protected and Brillouin zone folding driven bound states in the continuum in dielectric nanorod arrays for efficient third harmonic generation
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ada2f0
Abstract: Two types of bound states in continuum (BICs), symmetry-protected and Brillouin zone folding driven, are identified in hollow Si nanorod arrays. By modulating the direction and distance of the air holes from the center of… read more here.
Keywords: zone folding; states continuum; protected brillouin; brillouin zone ... See more keywords
Modified generalized Brillouin zone theory with on-site disorder
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.144204
Abstract: We study the characterization of the non-Hermitian skin effect (NHSE) in non-Hermitian systems with on-site disorder. We extend the application of generalized-Brillouin-zone (GBZ) theory to these systems. By proposing a modified GBZ theory, we give… read more here.
Keywords: theory; generalized brillouin; site disorder; brillouin zone ... See more keywords
Chern-Simons theory and Wilson loops in the Brillouin zone
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.094512
Abstract: Berry connection is conventionally defined as a static gauge field in the Brillouin zone. Here, the authors show that for three-dimensional (3D) time-reversal invariant superconductors, a generalized Berry gauge field behaves as a fluctuating field… read more here.
Keywords: wilson; space; chern simons; brillouin zone ... See more keywords
Floquet topological transitions in extended Kane-Mele models with disorder
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.054203
Abstract: In this work we use Floquet theory to theoretically study the influence of circularly polarized light on disordered two-dimensional models exhibiting topological transitions. We find circularly polarized light can induce a topological transition in extended… read more here.
Keywords: brillouin zone; mele models; extended kane; kane mele ... See more keywords
Multiple Brillouin Zone Winding of Topological Chiral Edge States for Slow Light Applications.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/physrevlett.132.156602
Abstract: Photonic Chern insulators are known for their topological chiral edge states (CESs), whose absolute existence is determined by the bulk band topology, but concrete dispersion can be engineered to exhibit various properties. For example, the… read more here.
Keywords: brillouin zone; topological chiral; edge states; light ... See more keywords
Irreducible first Brillouin zone for two-dimensional magnonic crystals with asymmetric complex lattices
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters B"
DOI: 10.1142/s0217984921501700
Abstract: Two-dimensional (2D) magnonic crystal (MC) with an asymmetric complex basis is proposed in this paper, and its band structures are calculated in the whole area of the first Brillouin zone (BZ). Thi... read more here.
Keywords: dimensional magnonic; first brillouin; asymmetric complex; brillouin zone ... See more keywords