Excitation of the radiationless anapole mode
WebFeb 25, 2016 · A method to excite the non-radiating anapole mode of a high index isotropic dielectric nanosphere is presented. With tightly focused radially polarized beam … WebFeb 1, 2024 · As a consequence, the radiation pattern of an anapole mode is composed of purely evanescent waves and it is entirely confined in the near-field, ... [16] Wei L, Xi Z, Bhattacharya N and Urbach H P 2016 Excitation of the radiationless anapole mode Optica 3 799. Go to reference in article; Crossref; Google Scholar
Excitation of the radiationless anapole mode
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WebAug 2, 2024 · The radiationless anapole is not an eigenmode of the open cavity, i.e., it cannot be self-sustained, and it can exist only in the presence of a suitable external excitation field. WebFeb 18, 2024 · Schematic of a reconfigurable optical antenna which supports the radiationless anapole condition hidden in a magnetic resonances at the same …
WebNov 23, 2024 · Since the nature of the excitation would be responsible for generating the anapole mode, our approach would provide a simple, straightforward alternate path to excite anapole mode that has been predicted to give rise to enhanced nonlinear effects, nanolasers, ideal magnetic scattering, as well as extremely high Q-factor and near-field … WebThe planar metamaterial can generate a resonant transparency in the terahertz spectrum due to the excitation of the anapole mode. Particularly, the frequency of anapole-induced resonant transparency can be tuned easily in the range of 0.15–0.93 THz by simply varying one geometric parameter of the dumbbell apertures.
WebJan 11, 2024 · Our findings demonstrate the controlled excitation of electromagnetic anapole modes in engineered arrays of silicon nano-disks for the development of optical … Web‘anapole’. An anapole mode can be viewed as a composition of electric and toroidal dipole moments, resulting in destructive interference of the radiation fields due to similarity of their far-field scattering patterns. Here we demonstrate experimentally that dielectric nanoparticles can exhibit a radiationless anapole mode in visible.
WebOct 9, 2024 · Anapole excitation in a simple metal configuration, ... Here we demonstrate experimentally that dielectric nanoparticles can exhibit a radiationless anapole mode in visible. We achieve the ...
WebMay 5, 2024 · More information: Yudong Lu et al, Cylindrical vector beams reveal radiationless anapole condition in a resonant state, Opto-Electronic Advances (2024). DOI: 10.29026/oea.2024.210014 is there a miniature husky breedWebDec 8, 2024 · The planar metamaterial can generate a resonant transparency in the terahertz spectrum due to the excitation of the anapole mode. Particularly, the frequency of anapole-induced resonant ... ihuman experienceWebMar 5, 2024 · [93] Wei L, Xi Z, Bhattacharya N and Urbach H P 2016 Excitation of the radiationless anapole mode Optica 3 799–802. Crossref; Google Scholar [94] … ihuman helpful hintsWebMar 5, 2024 · Radiationless anapole states in on-chip photonics. E. Díaz-Escobar ... This work addresses the excitation of electric anapoles states in silicon disks when excited on-chip at telecom wavelengths and finds that the anapole condition—identified by a strong reduction of the scattering—does not overlap with the near-field energy maximum, an ... is there a miniature pitbullWebOct 4, 2024 · As shown in Fig. 2 a, b, the anapole and maximum-energy wavelengths almost coincide for normal excitation, except for some specific radii such as around r = 275 nm, probably due to the... ihuman florence blackmanWebDec 1, 2024 · The lack of an electric dipole makes the excitation of the anapole moment difficult. In this study, we experimentally demonstrate that compact planar metadisks can exhibit a radiationless anapole mode of LSSPs at microwave frequencies. By integrating large and small split-ring resonators, the strong interaction between conductive and … ihuman eyewearWebMay 24, 2024 · The corresponding practically radiationless states are called anapole states. 3,4 The unique properties of anapole states reveal an exciting potential in many applications such as cloaking, 5,6 ... ihuman henrik anderson abdominal pain