Chiral exceptional points in metasurfaces
WebMay 11, 2024 · In particular, the dynamical encirclement of exceptional points (EPs) in parameter space has been shown to lead to a chiral phase accumulation, non-adiabatic jumps and topological mode conversion ... WebNov 14, 2024 · Abstract. From being an unfavorable consequence to finding itself as the intended imaginary part of a non-Hermitian system, loss has truly emerged as more of a friend than a foe in the context of acoustic metasurfaces. With the promising features of sub-wavelength geometries and the rapid advances in manufacturing techniques that …
Chiral exceptional points in metasurfaces
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WebNov 3, 2024 · 2024. TLDR. It is shown that controlling the absorption of a coupled microresonator system can produce a new kind of absorbing exceptional point, and how these exceptional points are distinct and how systems can be engineered to exhibit new scattering behavior. 62. PDF. WebSep 8, 2024 · We used the physics of chiral quasi-bound states in the continuum to demonstrate the efficient and controllable emission of circularly polarized light from resonant metasurfaces. Exploiting intrinsic …
WebSep 19, 2016 · An exceptional point (EP) is a degeneracy occurring in a non-energy-conserving system, in which two eigenvectors of a non-Hermitian Hamiltonian coalesce. We explore how EPs can be realized in a metamaterial surface, or metasurface, consisting … WebSep 19, 2016 · Abstract. An exceptional point (EP) is a degeneracy occurring in a non-energy-conserving system, in which two eigenvectors of a non-Hermitian …
WebJun 4, 2024 · This extraordinary chiroptical response is achieved through band folding that enables coupling of incident light to spin-polarized flat bands surrounded by exceptional rings, formed at Dirac points of plasmonic lattice resonances. The reported spin polarization differs from previously reported chiral and pseudochiral phenomena in that it solely ... WebDielectric metasurfaces have emerged as a powerful platform for novel optical biosensors. Due to their low optical loss and strong light–matter interaction, they demonstrate several exotic optical properties, including sharp resonances, strong near-field enhancements, and the compelling capability to support magnetic modes. They also …
WebApr 12, 2024 · Chiral exceptional points in metasurfaces. M. Kang, J. Chen, Y. Chong. Physics. 2016. An exceptional point (EP) is a degeneracy occurring in a non-energy …
WebMay 13, 2024 · This study proposes an approach to generate high-order exceptional points (EPs) in non-Hermitian systems. A system comprising a homogenous waveguide is considered wherein the imaginary part of the refractive index is modulated using a one-dimensional Moiré profile. This gain-loss modulation couples different lossless … eagle cliff healthcare billings mtWebSep 13, 2024 · Here, we report on the experimental realization of true/intrinsic chiral response with resonant metasurfaces where the engineered slant geometry breaks both … eagle cliff hotelhttp://www.alulab.org/journal%20papers.htm csi corley higher secondary schoolWebExceptional points are special points in non-Hermitian systems, and there are many novel physical phenomena in the parameter space near the exceptional points. In recent years, metasurface has been a popular topic in physics. A large number of devices with superior performance have been designed based on metasurface platform. The appearance of … csi corporate debt security indexWebAug 3, 2024 · In this article, we review the recent advances in exceptional-point and non-Hermitian metasurfaces. We introduce the basic theory of exceptional point and non … csic pagina webWebAbstract. We investigate the exceptional points (EPs) in chiral metasurfaces composed of periodic arrays of two orthogonally orientated graphene strips in the terahertz … csi countryWebDouble exceptional points in grating coupled metal-insulator-metal heterostructure. ... [Suppl. Mat. (1)] Giant photonic spin Hall effect in bilayer borophene metasurfaces. Min Cheng, Ping Fu, and Shengyu Chen. Opt. Express 30(22 ... ITO/Si/ITO semi-cone-shell chiral complexes on silicon nanocones with broadband circular dichroism in the mid ... csi countertops ocean view