Multipolar Engineering of Subwavelength Dielectric Particles for Scattering Enhancement

Krasikov, Sergey; Odit, Mikhail; Dobrykh, Dmitry; Yusupov, Ildar; Mikhailovskaya, Anna; Shakirova, Diana; Щербаков, А. А.; Slobozhanyuk, Alexey P.; Ginzburg, Pavel; Filonov, Dmitry; Bogdanov, Andrey

doi:10.1103/physrevapplied.15.024052

Cited by 26 publications

(10 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the scattering maxima of the multipoles are no longer limited by equation (42). In fact, to our knowledge, in a scatterer of arbitrary size and shape, the contribution of a multipole to the scattering cross-section is not bounded 50 . In the literature, however, the scattering limitations defined for spherical scatterers remain as a benchmark for the superscattering occurrence.…”

Section: Superscattering Regimementioning

confidence: 97%

“…Interestingly, we note that the SCS of each multipole is decoupled from the rest. Thus, every multipole can be viewed as an independent ‘scattering channel’, through which the nanoparticle can exchange power with the environment 50 .…”

Section: Modes and Multipolesmentioning

confidence: 99%

“…We also need to write down the following formula for the scattering cross-section (SCS) 20 , to directly compare the contributions of different multipoles to the SCS: Interestingly, we note that the SCS of each multipole is decoupled from the rest. Thus, every multipole can be viewed as an independent 'scattering channel' , through which the nanoparticle can exchange power with the environment 50 .…”

Section: Modes and Multipolesmentioning

confidence: 99%

See 2 more Smart Citations

Special scattering regimes for conical all-dielectric nanoparticles

Kuznetsov

Valero

Shamkhi

et al. 2022

Sci Rep

View full text Add to dashboard Cite

All-dielectric nanophotonics opens a venue for a variety of novel phenomena and scattering regimes driven by unique optical effects in semiconductor and dielectric nanoresonators. Their peculiar optical signatures enabled by simultaneous electric and magnetic responses in the visible range pave a way for a plenty of new applications in nano-optics, biology, sensing, etc. In this work, we investigate fabrication-friendly truncated cone resonators and achieve several important scattering regimes due to the inherent property of cones—broken symmetry along the main axis without involving complex geometries or structured beams. We show this symmetry breaking to deliver various kinds of Kerker effects (generalized and transverse Kerker effects), non-scattering hybrid anapole regime (simultaneous anapole conditions for all the multipoles in a particle leading to the nearly full scattering suppression) and, vice versa, superscattering regime. Being governed by the same straightforward geometrical paradigm, discussed effects could greatly simplify the manufacturing process of photonic devices with different functionalities. Moreover, the additional degrees of freedom driven by the conicity open new horizons to tailor light-matter interactions at the nanoscale.

show abstract

Section: Superscattering Regimementioning

confidence: 97%

Section: Modes and Multipolesmentioning

confidence: 99%

Section: Modes and Multipolesmentioning

confidence: 99%

See 1 more Smart Citation

Special scattering regimes for conical all-dielectric nanoparticles

Kuznetsov

Valero

Shamkhi

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…19a was also studied in [129] to see if it could achieve super scattering [130][131][132], rather than the maximal quality factor. By optimizing the relationship between the spherical multipole content of the excited mode, it was shown in [129] that the optimized structures in the limit of dipole scattering have a scattering cross section that exceeds the limit for a sphere by a factor of 4. Supercavity modes in a system of two coaxial silicon cylinders (see Fig.…”

Section: "Supercavity" Modes In Cylindersmentioning

confidence: 99%

Optical nanoresonators

Климов

2022

Успехи физических наук

View full text Add to dashboard Cite

The review presents the analysis and generalization of classical and most modern approaches to the description and development of the principles of operation of open optical nanoresonators, that is, resonators, all sizes of which are smaller than the resonant wavelength of radiation in vacuum. Particular attention is paid to the physics of such phenomena as bound states in a continuum, anapole states, supercavity modes, and perfect nonradiating modes with extremely high-quality factors and localizations of electromagnetic fields. The analysis of the optical properties of natural oscillations in nanoresonators made of metamaterials is also presented in the review. The effects considered in this review are not purely fundamental, but can also find applications in the development of optical nanoantennas, nanolasers, biosensors, photovoltaic devices, and nonlinear nanophotonics.

show abstract

“…75 A number of beautiful scattering phenomena in the area of electromagnetic waves were explained within the multipole approach including the anapole effect, 76,77 the Kerker effect, [78][79][80] and superscattering. [81][82][83][84] The multipole approach can also enable a deeper understanding of the physics of BICs in periodic structures. 85,86 Following the book by Bohren and Huffman, 87 we define the vector spherical harmonics M p m and N p m as…”

Section: Bic and Diffraction Ordersmentioning

confidence: 99%

Bound states in the continuum in photonic structures

et al. 2021

View full text Add to dashboard Cite

Bound states in the continuum provide a remarkable example of how a simple problem solved about a century ago in quantum mechanics can drive the research on a whole spectrum of resonant phenomena in wave physics. Due to their huge radiative lifetime, bound states in the continuum have found multiple applications in various areas of physics devoted to wave processes, including hydrodynamics, atomic physics, and acoustics. In this review paper, we present a comprehensive description of bound states in the continuum and related effects, focusing mainly on photonic dielectric structures. We review the history of this area, basic physical mechanisms in the formation of bound states in the continuum, and specific examples of structures supporting such states. We also discuss their possible applications in optics, photonics, and radiophysics.

show abstract

Multipolar Engineering of Subwavelength Dielectric Particles for Scattering Enhancement

Cited by 26 publications

References 58 publications

Special scattering regimes for conical all-dielectric nanoparticles

Special scattering regimes for conical all-dielectric nanoparticles

Optical nanoresonators

Bound states in the continuum in photonic structures

Contact Info

Product

Resources

About