Modifying magnetic dipole spontaneous emission with nanophotonic structures (Laser Photonics Rev. 11(3)/2017)

Baranov, Denis G.; Savelev, Roman S.; Li, Sergey V.; Krasnok, Alex; Alù, Andrea

doi:10.1002/lpor.201770031

Cited by 9 publications

(8 citation statements)

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“…Recently, a series of experimental studies have demonstrated the detection − and manipulation of magnetic dipole transitions in lanthanide ions by means of metallic and dielectric interfaces in the visible range − and by plasmonic cavities in the near-infrared . In addition, in the past few years, theoretical studies have predicted the extraordinary properties of a certain class of photonic nanostructures, in particular low-loss dielectric resonators − and plasmonic nanoantennas, − to strongly enhance the optical magnetic field together with the spontaneous emission of magnetic dipoles, ,,,,,,, making them ideal to open new avenues in the emerging field of magneto-nanophotonics. Although several interesting studies have aimed at detecting and studying the magnetic component of light, − no experimental demonstration of the manipulation of magnetic spontaneous emission by means of nanoantennas has been reported so far at visible wavelengths.…”

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confidence: 99%

Enhancing Magnetic Light Emission with All-Dielectric Optical Nanoantennas

et al. 2018

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Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency with which matter interacts with electric optical fields is commonly accepted to be at least 4 orders of magnitude higher than with magnetic optical fields. Here, we experimentally demonstrate that properly designed photonic nanoantennas can selectively manipulate the magnetic versus electric emission of luminescent nanocrystals. In particular, we show selective enhancement of magnetic emission from trivalent europium-doped nanoparticles in the vicinity of a nanoantenna tailored to exhibit a magnetic resonance. Specifically, by controlling the spatial coupling between emitters and an individual nanoresonator located at the edge of a near-field optical scanning tip, we record with nanoscale precision local distributions of both magnetic and electric radiative local densities of states (LDOS). The map of the radiative LDOS reveals the modification of both the magnetic and electric quantum environments induced by the presence of the nanoantenna. This manipulation and enhancement of magnetic light-matter interaction by means of nanoantennas opens up new possibilities for the research fields of optoelectronics, chiral optics, nonlinear and nano-optics, spintronics, and metamaterials, among others.

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confidence: 99%

Enhancing Magnetic Light Emission with All-Dielectric Optical Nanoantennas

et al. 2018

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“…It is worth noting that Mie‐resonant nanostructures can be used for the emission rate enhancement of integrated nanoemitters due to changing the local density of optical states [ 7,11 ] and can be considered as elements of radiative (active) dielectric nanophotonics. [ 12–15 ] Experimentally, nanoscale sources emission enhancement is demonstrated in the visible wavelength range for color centers in nanodiamonds, [ 16,17 ] perovskites, [ 18 ] MoS 2 monolayer, [ 19 ] and europium ions. [ 20 ] Thus, silicon potentially applied as a host matrix for an emitter can be used as a building block of radiative optical elements based on Mie‐resonant nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Active Erbium‐Doped Silicon Nanoantenna

Yaroshenko

Obramenko

Dyatlovich

et al. 2023

Laser & Photonics Reviews

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The development of silicon‐based radiative nanostructures is an important step toward silicon‐based optoelectronic systems. Here an approach for the fabrication of photoluminescent Er‐doped silicon nanoantennas is demonstrated. The combination of electron beam lithography and laser annealing of a thin Er film deposited after fabrication creates an active dielectric nanoantenna operating in the standard telecommunication wavelength range (C‐band). Using the multipole decomposition method the geometrical parameters of the silicon nanoparticle when the first‐order Mie‐resonances are tuned to the erbium emission in C‐band range (4I13/2→4I15/2$^4I_{13/2}\rightarrow ^4I_{15/2}$ transition) is calculated. It is observed experimentally that the presence of the Mie‐resonances provides enhancement of the photoluminescence intensity up to 40% compared to the non‐resonant case. The proposed approach allows for the creation of computational optical chips compatible with existing nanofabrication technologies.

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“…Receiving more attention have been interactions produced by coupling electric dipole transitions with the electromagnetic field since the magnetic dipole emission is usually orders of magnitude weaker in most materials. [ 19 ] However, the low losses and high magnetic resonance in the visible range in Si nanoantennas permit reaching a high local density of magnetic states, making the coupling with the magnetic dipolar mode significant. [ 7,13,20 ] This enhanced magnetic field allows the modification of magnetic transitions in some transition metals, such as Cr 3+ , [ 21 ] and lanthanide series ions, like Eu 3+[ 18 ] and Er 3+ , [ 22 ] in which electric dipolar first‐order transitions are normally forbidden.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Purcell Enhancement in a Nanoantenna‐Spherical Bragg Resonator Coupled System

García‐Puente,

Kashyap

2023

Annalen der Physik

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In this work, a novel approach for enhancing magnetic fields in all‐dielectric nanoantennas using Spherical Bragg Resonators (SBR) is proposed, which can boost quantum emitters' magnetic transitions. A matrix method has been used to optimize the magnetic dipole resonance of a SiO2/Si core‐shell spherical nanoantenna. The radiative and non‐radiative decay rate of a Eu3+ emitter with a quantum efficiency of ∼80% is studied. The findings revealed that the magnetic dipole nanoantenna resonance coupling with the SBR mode significantly enhances the modal magnetic field. A 4‐layer SiO2/Si SBR results in a Purcell factor of , the highest it has found in the literature, to the best of the knowledge. The work offers a theoretical demonstration of the potential of SBR to improve the performance of dielectric nanoantennas.

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Modifying magnetic dipole spontaneous emission with nanophotonic structures (Laser Photonics Rev. 11(3)/2017)

Cited by 9 publications

References 0 publications

Enhancing Magnetic Light Emission with All-Dielectric Optical Nanoantennas

Enhancing Magnetic Light Emission with All-Dielectric Optical Nanoantennas

Active Erbium‐Doped Silicon Nanoantenna

Magnetic Purcell Enhancement in a Nanoantenna‐Spherical Bragg Resonator Coupled System

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