Transverse Kerker Effect in All-Dielectric Spheroidal Particles

Bukharin, M.M.; Pecherkin, V. Ya.; Ospanova, Anar K.; Ильин, В. П.; Vasilyak, L. M.; Basharin, Alexey A.; Luk’yanchuk, Boris

doi:10.21203/rs.3.rs-947900/v1

Cited by 3 publications

(3 citation statements)

References 34 publications

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“…When the silicon resonator is illuminated in the vicinity of the lower-Q mode B2, the generated far-field pattern of the TH emission shows a transverse directionality for different aspect ratios. This nonlinear-type transverse Kerker effect can be interpreted by the nonlinearly generated multipolar interference effect [6,15], similar to the linear case for generalised Kerker effect which has been widely studied in the past [49][50][51][52][53]. For the A-mode region, when the silicon resonator is pumped at the resonance position using a AP beam, a substantial enhancement of the electric near field has been observed numerically.…”

Section: Resultsmentioning

confidence: 59%

Infrared imaging with nonlinear silicon resonator governed by high-Q quasi-BIC states

Sanderson,

Zheng,

Melik-Gaykazyan

et al. 2024

J. Opt.

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Nonlinear light-matter interactions have emerged as a promising platform for various applications, including imaging, nanolasing, background-free sensing, etc. Subwavelength dielectric resonators offer unique opportunities for manipulating light at the nanoscale and miniturising optical elements. Here, we explore the resonantly enhanced four-wave mixing (FWM) process from individual silicon resonators and propose an innovative FWM-enabled infrared imaging technique that leverages the capabilities of these subwavelength resonators. Specifically, we designed high-Q silicon resonators hosting dual quasi-bound states in the continuum at both the input pump and signal beams, enabling efficient conversion of infrared light to visible radiation. Moreover, by employing a point-scanning imaging technique, we achieve infrared imaging conversion while minimising the dependence on high-power input sources. This combination of resonant enhancement and point-scanning imaging opens up new possibilities for nonlinear imaging using individual resonators and shows potential in advancing infrared imaging techniques for high-resolution imaging, sensing, and optical communications.

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Section: Resultsmentioning

confidence: 59%

Infrared imaging with nonlinear silicon resonator governed by high-Q quasi-BIC states

Sanderson,

Zheng,

Melik-Gaykazyan

et al. 2024

J. Opt.

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show abstract

“…The obtained Q-factor at near normal incidence is much higher than those achieved using other resonances in metasurfaces e.g. at the Kerker condition [52,53]. The availability of such high Q-factors helps to obtain substantial Purcell enhancement, for an embedded quantum emitter, that enables on-demand single photon emission with a high emission rate.…”

Section: Resultsmentioning

confidence: 86%

The impact of light polarization and the nature of modes in the formation of quasi-bound states in the continuum at near-normal incidence

Prathap N V,

Khokhar,

Nair

2023

J. Phys. D: Appl. Phys.

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Bound states in the continuum (BIC) is a peculiar resonant mode with an infinite radiative lifetime and quality factor (Q-factor) embedded within the radiation continuum, which find applications in sensing, lasing, and quantum photonics. While an ideal BIC with an infinite Q-factor can only occur in theory, observing quasi-BIC in realistic samples with finite sizes is possible. However, the robustness of quasi-BIC depends primarily on the trapped electromagnetic modes. Here, we discuss the polarization dependence and the nature of quasi-BIC mode in a two-dimensional array of gallium arsenide (GaAs) scatterers through finite difference time domain simulations and analytical calculations. The calculated angle- and polarization-dependent transmission spectra show quasi-BIC evolution with high Q-factor at near-normal incidence only for transverse magnetic polarization. The calculated total scattering cross-section implies the dominant contribution from electric dipole moments in generating the quasi-BIC. The evolution of quasi-BIC mode is discussed in terms of Mie or Fabry-Perot modes using geometry-dependent transmission and field intensity calculations. The proposed GaAs metasurfaces with quasi-BIC at 638 nm, corresponding to the zero phonon line of nitrogen-vacancy centers in diamond are useful for applications in photonic quantum technologies.

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“…ED + MD Silicon spherical nanoparticles 55,63 -ED + EQ Plasmonic gold nanoring nanoantenna 25 -ED + MQ -Ceramic spheroidal particle 64 Silicon square nanoplate 62 MD + EQ -Core-shell SiO2@InSb and Si@InSb in a one-dimensional (1D) metalattice geometry in the Terahertz range 65 MD + MQ Ceramic core-shell 66 -EQ + MQ Both isolated and periodically arranged homogeneous cross dielectric structure 67 -ED + MD + EQ + MQ Individual core-shell nanoparticles 68 Silicon cube 29 Ceramic cube and cylinder 30 Vol:. ( 1234567890) www.nature.com/scientificreports/ than the EQ and MD.…”

Section: Generalized Transversementioning

confidence: 99%

Special scattering regimes for conical all-dielectric nanoparticles

Kuznetsov

Valero

Shamkhi

et al. 2022

Sci Rep

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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.

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Transverse Kerker Effect in All-Dielectric Spheroidal Particles

Cited by 3 publications

References 34 publications

Infrared imaging with nonlinear silicon resonator governed by high-Q quasi-BIC states

Infrared imaging with nonlinear silicon resonator governed by high-Q quasi-BIC states

The impact of light polarization and the nature of modes in the formation of quasi-bound states in the continuum at near-normal incidence

Special scattering regimes for conical all-dielectric nanoparticles

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