Optical spectroscopy of single Si nanocylinders with magnetic and electric resonances

Evlyukhin, Andrey B.; Eriksen, René Lynge; Cheng, Wei; Beermann, Jonas; Reinhardt, Carsten; Petrov, Alexander Yu.; Prorok, Stefan; Eich, Manfred; Chichkov, Boris N.; Bozhevolnyi, Sergey I.

doi:10.1038/srep04126

Cited by 73 publications

(60 citation statements)

References 32 publications

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“…Recently this problem was numerically investigated for the case of cylindrical dielectric nanoparticles. 26 This paper also demonstrates that effect of substrate is more pronounced for the electric resonance. Nevertheless, for spheroid, this effect can also be compensated by tuning the aspect ratio.…”

Section: Final Results Of Optimization Is Presented Inmentioning

confidence: 72%

Optimum Forward Light Scattering by Spherical and Spheroidal Dielectric Nanoparticles with High Refractive Index

et al. 2015

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High-refractive index dielectric nanoparticles may exhibit strong directional forward light scattering at visible and near-infrared wavelengths due to interference of simultaneously excited electric and magnetic dipole resonances. For a spherical particle shape, the so-called first Kerker's condition can be realized, at which the backward scattering practically vanishes for some combination of refractive index and particle size. However, realization of Kerker's condition for spherical particles is only possible at the tail of the scattering resonances, when the particle scatters light weakly. Here we demonstrate that significantly higher forward scattering can be realized if spheroidal particles are considered instead. For each value of refractive index n exists an optimum shape of the particle, which produces minimum backscattering efficiency together with maximum forward scattering. This effect is achieved due to the overlapping of magnetic and electric dipole resonances of the spheroidal particle at the resonance frequency. It permits the design of very efficient, low-loss optical nanoantennas. We show that the results obtained for spheroidal particles can accurately describe the response of a wide range of practical particle shapes with the same aspect ratio, which can be obtained in experiment.

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Section: Final Results Of Optimization Is Presented Inmentioning

confidence: 72%

Optimum Forward Light Scattering by Spherical and Spheroidal Dielectric Nanoparticles with High Refractive Index

et al. 2015

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“…Figure 3 shows the numerically calculated scattering efficiency spectra (a), as well as the extinction and scattering spectra (b) of such particle. Note that the resonance frequencies of the particle can be shifted not only by changing its size, by also its shape [73,74]. Almost complete absence of conductivity currents in silicon in the optical frequency range leads to low dissipative losses, in contrast to plasmonic structures where the strong field localization is always accompanied by high dissipation.…”

Section: Optical Properties Of High-index Dielectric Nanoparticlesmentioning

confidence: 99%

All-Dielectric Nanophotonics: Fundamentals, Fabrication, and Applications

Krasnok¹,

Savelev²,

Baranov³

et al. 2017

World Scientific Handbook of Metamaterials and Plasmonics

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In this Article, we review a novel, rapidly developing field of modern light science named alldielectric nanophotonics. This branch of nanophotonics is based on the properties of high-index dielectric nanoparticles which allow for controlling both magnetic and electric responses of a nanostructured matter. Here, we discuss optical properties of high-index dielectric nanoparticles, methods of their fabrication, and recent advances in practical applications, including the quantum source emission engineering, Fano resonances in all-dielectric nanoclusters, surface enhanced spectroscopy and sensing, coupled-resonator optical waveguides, metamaterials and metasurfaces, and nonlinear nanophotonics.

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“…Recently, it has been suggested that all-dielectric nanoantennas can demonstrate much better performance in nanophotonics devices [36,[53][54][55] by exploiting the magnetic Mie resonances of high-index dielectric nanoparticles [56][57][58][59]. In particular, such all-dielectric nanoantennas demonstrate enhanced radiation efficiency in contrast to their plasmonic counterparts [36,[53][54][55].…”

Section: Introductionmentioning

confidence: 99%

Enhanced emission extraction and selective excitation of NV centers with all–dielectric nanoantennas

Krasnok

Maloshtan

Chigrin

et al. 2015

Laser & Photonics Reviews

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A novel approach to facilitate excitation and readout processes of isolated negatively charged nitrogen-vacancy (NV) centers is proposed. The approach is based on the concept of all-dielectric nanoantennas. It is shown that the all-dielectric nanoantenna can significantly enhance both the emission rate and emission extraction efficiency of a photoluminescence signal from a single NV center in a diamond nanoparticle on a dielectric substrate. The proposed approach provides high directivity, large Purcell factor, and efficient beam steering, thus allowing an efficient far-field initialization and readout of several NV centers separated by subwavelength distances.

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Optical spectroscopy of single Si nanocylinders with magnetic and electric resonances

Cited by 73 publications

References 32 publications

Optimum Forward Light Scattering by Spherical and Spheroidal Dielectric Nanoparticles with High Refractive Index

Optimum Forward Light Scattering by Spherical and Spheroidal Dielectric Nanoparticles with High Refractive Index

All-Dielectric Nanophotonics: Fundamentals, Fabrication, and Applications

Enhanced emission extraction and selective excitation of NV centers with all–dielectric nanoantennas

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