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Nonradiating electromagnetic configurations in nanostructures open new horizons for applications due to two essential features: lack of energy losses and invisibility to the propagating electromagnetic field. Such radiationless…

介观与纳米尺度物理 · 物理学 2018-09-26 Maria Timofeeva , Lukas Lang , Flavia Timpu , Claude Renaut , Alexei Bouravleuv , Igor Shtrom , George Cirlin , Rachel Grange

The optical anapole resonances in nanostructures display strong field confinement and substantially suppressed scattering. In this study using three-dimensional finite-difference time-domain simulations, it is shown that high refractive…

光学 · 物理学 2023-01-16 A. V. Panov

We present the experimental realization of ordered arrays of hyper-doped silicon nanodisks, which exhibit a localized surface plasmon resonance. The plasmon is widely tunable in a spectral window between 2 and 5 $\mu$m by adjusting the free…

Polar dielectrics are a promising platform for mid-infrared nanophotonics, allowing for nanoscale electromagnetic energy confinement in oscillations of the crystal lattice. We recently demonstrated that in nanoscopic polar systems a local…

介观与纳米尺度物理 · 物理学 2021-01-04 Christopher R. Gubbin , Simone De Liberato

Nanophotonic structures provide an efficient route to enhancing magneto-optical effects by concentrating electromagnetic fields at subwavelength scales. In this work, we propose and experimentally demonstrate a helicity-preserving…

Dielectric photonics platform provides unique possibilities to control light scattering via utilizing high-index dielectric nanoantennas with peculiar optical signatures. Despite the intensively growing field of all-dielectric…

Photonic cavities are valued in current research owing to the multitude of linear and nonlinear effects arising from densely confined light. Cavity designs consisting of low loss dielectric materials can achieve significant light…

应用物理 · 物理学 2020-03-26 Nicholas Joel Damaso , Sejeong Kim

Optical properties of nanoparticles attract continuous attention owing to their high fundamental and applied importance across many disciplines. Recently emerged field of all-dielectric nanophotonics employs optically induced electric and…

光学 · 物理学 2018-10-30 Roman E. Noskov , Ivan I. Shishkin , Hani Barhom , Pavel Ginzburg

Anapole states are broadly investigated in nanophotonics for their ability to provide field enhancement and transparency. While low extinction has been achieved in dielectric nanoparticles due to the absence of intrinsic losses, in the case…

光学 · 物理学 2024-12-19 Emadeldeen Hassan , Andrey B. Evlyukhin , Antonio Calà Lesina

Polar dielectric nanoresonators can support hybrid photon-phonon modes termed surface phonon polaritons with lengthscales below the diffraction limit. In the deep sub-wavelength regime the optical response of these systems was recently…

介观与纳米尺度物理 · 物理学 2020-06-11 C. R. Gubbin , S. De Liberato

Directional light scattering by spherical silicon nanoparticles in the visible spectral range is experimentally demonstrated for the first time. These unique scattering properties arise due to simultaneous excitation and mutual interference…

Integration of optical interconnects with silicon-based electronics can address the growing limitations facing chip-scale data transport as microprocessors become progressively faster. However, material lattice mismatch and incompatible…

By combining analytical and numerical approaches, we study resonantly enhanced second-harmonic generation (SHG) by individual high-index dielectric nanoparticles made of centrosymmetric materials. Considering both bulk and surface…

光学 · 物理学 2018-01-08 Daria Smirnova , Alexander I. Smirnov , Yuri S. Kivshar

Electric anapole states, arising due to the destructive interferences of primitive and toroidal electric dipole moments, have been recently introduced as the fundamental class of non-scattering sources with several potential applications…

光学 · 物理学 2023-04-24 Hooman Barati Sedeh , Natalia M. Litchinitser

Pattern formation induced by wrinkling is a very common phenomenon exhibited in soft-matter substrates. In all these systems wrinkles develop in presence of compressively stressed thin films lying on compliant substrates. Here we…

介观与纳米尺度物理 · 物理学 2019-03-26 Maria Caterina Giordano , Francesco Buatier de Mongeot

High-index dielectric nanoparticles supporting a distinct series of Mie resonances have enabled a new class of optical antennas with unprecedented functionalities. The great wealth of multipolar responses and their delicate interplay have…

光学 · 物理学 2018-07-31 Jingyi Tian , Hao Luo , Yuanqing Yang , Yurui Qu , Ding Zhao , Min Qiu , Sergey I. Bozhevolnyi

In this paper, effect of dipole-dipole interactions on nonlinear optical properties of the system of randomly located semiconductor nanoparticles embedded in bulk dielectric matrix is investigated. This effect results from the nonzero…

介观与纳米尺度物理 · 物理学 2013-09-12 Andrey V. Panov

We reveal that an isotropic homogeneous subwavelength particle with a high refractive index can produce ultra-weak total scattering due to vanishing contribution of the electric dipole moment. This effect can be explained with the help of…

All-dielectric optical nano-resonators, exhibiting exotic near-field distributions upon excitations, have emerged as low-loss, versatile and highly adaptable components in nanophotonic structures for manipulating electromagnetic waves and…

Nanoporosity in silicon results in an interface-dominated mechanics, fluidics and photonics that are often superior to the ones of the bulk material. However, their active control, e.g. as a response to electronic stimuli, is challenging…

材料科学 · 物理学 2022-11-29 Manuel Brinker , Patrick Huber