Light Guidance Aided by the Toroidal Dipole and the Magnetic Quadrupole in Silicon Slotted-Disk Chains
Sign Up to like & getrecommendations! Published in 2023 at "ACS Photonics"
DOI: 10.1021/acsphotonics.2c01840
Abstract: Far-field scattering of high-index nanoparticles can be hugely reduced via interference of multipolar moments giving rise to the so-called anapole states. It has been suggested that this reduced scattering can contribute to efficient transmission along… read more here.
Keywords: dipole magnetic; light guidance; disk chains; transmission ... See more keywords
Tuning toroidal dipole resonances in dielectric metamolecules by an additional electric dipolar response
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5078576
Abstract: With the rise of artificial magnetism and metamaterials, the toroidal family recently attracts more attention for its unique properties. Here we propose an all-dielectric pentamer metamolecule consisting of nano-cylinders with two toroidal dipolar resonances, whose… read more here.
Keywords: toroidal dipole; tuning toroidal; additional electric; dipole ... See more keywords
Nanofocusing of Toroidal Dipole for Simultaneously Enhanced Electric and Magnetic Fields Using Plasmonic Waveguide
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2794365
Abstract: Optical toroidal dipole and electromagnetic field enhancement have attracted much interest owing to their interesting physical features and various potential nanophotonic applications. In this paper, novel antireflective nanofocusing methods to deliver and squeeze toroidal dipole… read more here.
Keywords: dipole simultaneously; toroidal dipole; electric magnetic; magnetic fields ... See more keywords
Toroidal optical transitions in hydrogen-like atoms
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.abq6751
Abstract: It is commonly believed that electromagnetic spectra of atoms and molecules can be fully described by interactions involving electric and magnetic multipoles. However, it has recently become clear that interactions between light and matter also… read more here.
Keywords: hydrogen like; toroidal optical; optical transitions; transitions hydrogen ... See more keywords
Toroidal dipole-induced absorption and scattering dip in (dielectric core)@(plasmonic shell) nanostructures
Sign Up to like & getrecommendations! Published in 2017 at "Optics Express"
DOI: 10.1364/oe.25.028935
Abstract: As the counterpart of electric and magnetic dipoles, the toroidal dipole is of paramount importance in the flourishing fields of metamaterials and Nanophotonics, and has therefore been getting much attention recently. Here, we demonstrate that… read more here.
Keywords: absorption; toroidal dipole; scattering dip; dipole ... See more keywords
Actively tunable toroidal response in microwave metamaterials.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455807
Abstract: Toroidal dipole moment has attracted much attention in recent years due to their novel electromagnetic response such as non-reciprocal interactions and unusual low-radiating manifestations. However, most of the previously reported toroidal dipole moment are incapable… read more here.
Keywords: actively tunable; toroidal response; dipole; toroidal dipole ... See more keywords
A low-loss zero-index photonic crystal slab based on toroidal dipole mode.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.464584
Abstract: Zero-index medium has profound application for light manipulation. Certain types of dielectric photonic crystals (PCs) may have zero effective index since they form Dirac cone at the Γ point of their band structure. Although zero… read more here.
Keywords: toroidal dipole; index; dipole mode; zero index ... See more keywords
Pure toroidal dipole in a single dielectric disk.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.468645
Abstract: The toroidal dipole is a peculiar electromagnetic excitation and has attracted increasing interests because of unusual radiation characteristics. However, the realization of toroidal moment requires complicated structure and are often disturbed by the conventional electric… read more here.
Keywords: pure toroidal; toroidal dipole; dielectric disk;
Highly sensitive terahertz sensing with 3D-printed metasurfaces empowered by a toroidal dipole.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.472923
Abstract: Highly sensitive terahertz (THz) sensing with metasurfaces has attracted considerable attention recently. However, ultrahigh sensing sensitivity remains a huge challenge for practical applications. To improve the sensitivity of these devices, herein we have proposed an… read more here.
Keywords: sensitive terahertz; sensitivity; thz; highly sensitive ... See more keywords
Strong light-matter interactions of exciton in bulk WS2 and a toroidal dipole resonance.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.481063
Abstract: Exciton-polaritonic states are generated by strong interactions between photons and excitons in nanocavities. Bulk transition metal dichalcogenides (TMDCs) host excitons with a large binding energy at room temperature, and thus are regarded as an ideal… read more here.
Keywords: light matter; ws2; bulk ws2; dipole resonance ... See more keywords
Giant optical chirality in dielectric metasurfaces induced by toroidal dipole resonances.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.482857
Abstract: Although toroidal dipole (TD) resonance is a highly localized mode with a high quality (Q) factor, in most chiral structures the TD resonance is much weaker than the electric or magnetic dipole resonances and contributes… read more here.
Keywords: optical chirality; giant optical; toroidal dipole; dipole resonances ... See more keywords