Purcell effect for active tuning of light scattering from semiconductor optical antennas

Holsteen, Aaron L.; Raza, Søren; Fan, Pengyu; Kik, Pieter G.; Brongersma, Mark L.

doi:10.1126/science.aao5371

Cited by 108 publications

(90 citation statements)

References 18 publications

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“…As discussed, in this work our dielectric resonators are on conductive substrates. This modifies the multipole resonances of the particles [37][38][39][40][41][42][43][44]. In this section, we describe the design of our LWIR magnetic mirror.…”

Section: Design Of Lwir Magnetic Mirrormentioning

confidence: 99%

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Long-wave infrared magnetic mirror based on Mie resonators on conductive substrate

Ye¹,

Li²,

Gao³

et al. 2020

Opt. Express

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Metal films are often used in optoelectronic devices as mirrors and/or electrical contacts. In many such devices, however, the π-phase shift of the electric field that occurs upon reflection from a perfect electric conductor (for which a metal mirror is a reasonable approximation) is undesirable. This is because it results in the total electric field being zero at the mirror surface, which is unfavorable if one wishes for example to enhance absorption by a material placed there. This has motivated the development of structures that reflect light with zero phase shift, as these lead to the electric field having an anti-node (rather than node) at the surface. These structures have been denoted by a variety of terms, including magnetic mirrors, magnetic conductors, and high impedance surfaces. In this work, we experimentally demonstrate a long-wave infrared device that we term a magnetic mirror. It comprises an array of amorphous silicon cuboids on a gold film. Our measurements demonstrate a phase shift of zero and a high reflectance (of ∼90%) at a wavelength of 8.4 µm. We present the results of a multipole analysis that provides insight into the physical mechanism. Lastly, we investigate the use of our structure in a photodetector application by performing simulations of the optical absorption by monolayer graphene placed on the cuboids.

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Section: Design Of Lwir Magnetic Mirrormentioning

confidence: 99%

“…Multipole analysis is a well-established method and has proven successful for many scattering problems [40][41][42]44,45,47,48]. Nonetheless, most conventional multipole analysis methods have the constraint of requiring the scatterer to be situated in a homogeneous environment.…”

Section: A1 Multipole Analysis Of Scatterer Above a Perfect Electricmentioning

confidence: 99%

Long-wave infrared magnetic mirror based on Mie resonators on conductive substrate

Ye¹,

Li²,

Gao³

et al. 2020

Opt. Express

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“…As already mentioned, the original Kerker effect was introduced for a single magnetic sphere in free space with an incident plane wave [1]. It has been greatly generalized, not only to various nonmagnetic particles of different shapes [7,10,[12][13][14], but also to other engineered incident waves [40][41][42][43][44][45][46][47], with the effects of substrates also studied in detail for practical applications [48][49][50][51][52]. Figure 2 includes three experimental studies on efficient beam steering based on interferences of multipoles excited with individual particles [43, 53,54].…”

Section: Generalized Kerker Effects For Individual Particlesmentioning

confidence: 99%

Selective Third-Harmonic Generation by Structured Light in Mie-Resonant Nanoparticles

et al. 2017

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The original Kerker effect was introduced for a hypothetical magnetic sphere, and initially it did not attract much attention due to a lack of magnetic materials required. Rejuvenated by the recent explosive development of the field of metamaterials and especially its core concept of optically-induced artificial magnetism, the Kerker effect has gained an unprecedented impetus and rapidly pervaded different branches of nanophotonics. At the same time, the concept behind the effect itself has also been significantly expanded and generalized. Here we review the physics and various manifestations of the generalized Kerker effects, including the progress in the emerging field of meta-optics that focuses on interferences of electromagnetic multipoles of different orders and origins. We discuss not only the scattering by individual particles and particle clusters, but also the manipulation of reflection, transmission, diffraction, and absorption for metalattices and metasurfaces, revealing how various optical phenomena observed recently are all ubiquitously related to the Kerker's concept.

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“…However, probably the simplest, most efficient, and flexible platform able to confine light is a nanoparticle located on top of a metallic mirror . For these so‐called particle‐on‐mirror (PoM) structures, if the distance between the mirror and the optical antenna or their array is on the order of several tens or hundreds of nanometers, several exotic effects take place . Relevant examples, which have found applications, are coupling to surface plasmons launched on the metallic film below, or far‐field interference which boosts the absorption of the particle layer …”

Section: Introductionmentioning

confidence: 99%

Low‐Loss Hybrid High‐Index Dielectric Particles on a Mirror for Extreme Light Confinement

Maimaiti

Patra

Jones

et al. 2020

Advanced Optical Materials

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The quest for enhancing light–matter interactions at the nanoscale has led scientists to nanophotonic systems that support the smallest possible modes, which are currently realized via particle‐on‐mirror (PoM) geometries using plasmonic particles. The drawback of metallic PoM systems is the large absorption/scattering ratio due to the significant Ohmic losses inherent to plasmonics. Here, an alternative dielectric PoM composed of a high‐index dielectric nanodisk on top of a metallic mirror is realized. Custom‐shaped high‐quality dielectric colloidal nanoparticles are fabricated and dispersed on a mirror to fully unlock the potential of PoM systems. This hybrid device combines the large field enhancement and extreme localization of plasmonic systems with the low absorption of dielectric nanoresonators. By means of far‐field scattering and near‐field cathodoluminescence spectroscopy, the nature of the modes supported by the hybrid PoM are revealed. Utilizing enhanced spectroscopies, such as Raman and fluorescence, these hybrid‐PoM systems are used in proof‐of‐principle applications. A comparison with Au antennas indicates that the hybrid PoM system presents efficiencies and optical characteristics comparable or superior to those of more conventional purely plasmonic systems, opening new avenues for low‐loss light control at the deep nanoscale level.

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Purcell effect for active tuning of light scattering from semiconductor optical antennas

Cited by 108 publications

References 18 publications

Long-wave infrared magnetic mirror based on Mie resonators on conductive substrate

Long-wave infrared magnetic mirror based on Mie resonators on conductive substrate

Selective Third-Harmonic Generation by Structured Light in Mie-Resonant Nanoparticles

Low‐Loss Hybrid High‐Index Dielectric Particles on a Mirror for Extreme Light Confinement

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