Spatial Intensity Distribution in Plasmonic Particle Array Lasers

Ke, Guo; Koenderink, A. Femius

doi:10.1103/physrevapplied.11.024025

Cited by 10 publications

(9 citation statements)

References 57 publications

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“…The strong near-fields provided by lattice resonances play a crucial role for applications, such as nanolasing, in which the arrays interact with quantum emitters placed in their vicinity [37,60,61]. Specifically, in these systems, the lattice resonances couple with the emitters (usually quantum dots or dye molecules) that constitute the gain medium and provide the necessary feedback to achieve lasing [44,45,[62][63][64][65][66][67][68]. These modes can also strongly influence the emission patterns of the emitters [69,70].…”

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confidence: 99%

Lattice Resonances Induced by Periodic Vacancies in Arrays of Nanoparticles

2021

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Periodic arrays of nanoparticles are capable of supporting lattice resonances, collective modes arising from the coherent interaction of the particles in the array. These resonances, whose spectral position is determined by the array periodicity, are spectrally narrow and lead to strong optical responses, making them useful for a wide range of applications, from nanoscale light sources to ultrasensitive biosensors. Here, we report that, by removing particles from an array in a periodic fashion, it is possible to induce lattice resonances at wavelengths commensurate with the periodicity of these vacancies, which would otherwise not be present in the system. Using a coupled dipole approach, we perform a comprehensive analysis of how the properties of these vacancy-induced lattice resonances depend on the array periodicity, the particle size, and the number of vacancies per unit of area. Furthermore, we find that these lattice resonances have a subradiant character and originate from the symmetry breaking introduced in the unit cell by the presence of the vacancies. Finally, we investigate a potential implementation of an array with vacancies made of nanocylinders embedded in a homogeneous dielectric environment. The results of this work serve to advance our understanding of lattice resonances and provide an alternative method for controlling the optical response of periodic arrays of nanostructures.

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confidence: 99%

Lattice Resonances Induced by Periodic Vacancies in Arrays of Nanoparticles

2021

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“…We can understand this profile with coupled-wave theory, which was originally introduced for photonic DFB lasers and recently applied to plasmonic lasers. , The theory considers counter-propagating plane waves R ( x ) exp(−i k SPP x ) and S ( x ) exp(i k SPP x ), traveling in the + x and − x directions over the feedback cavity, respectively, with smoothly varying complex electric-field envelopes R ( x ) and S ( x ). The plane waves are subject to gain and weak scattering at a periodic perturbation (here, the ridges of the feedback cavity), leading to coupling between the waves close to the stop-gap edges.…”

Section: Resultsmentioning

confidence: 99%

Compact Plasmonic Distributed-Feedback Lasers as Dark Sources of Surface Plasmon Polaritons

et al. 2021

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Plasmonic modes in optical cavities can be amplified through stimulated emission. Using this effect, plasmonic lasers can potentially provide chip-integrated sources of coherent surface plasmon polaritons (SPPs). However, while plasmonic lasers have been experimentally demonstrated, they have not generated propagating plasmons as their primary output signal. Instead, plasmonic lasers typically involve significant emission of free-space photons that are intentionally outcoupled from the cavity by Bragg diffraction or that leak from reflector edges due to uncontrolled scattering. Here, we report a simple cavity design that allows for straightforward extraction of the lasing mode as SPPs while minimizing photon leakage. We achieve plasmonic lasing in 10-μm-long distributed-feedback cavities consisting of a Ag surface periodically patterned with ridges coated by a thin layer of colloidal semiconductor nanoplatelets as the gain material. The diffraction to free-space photons from cavities designed with second-order feedback allows a direct experimental examination of the lasing-mode profile in real- and momentum-space, in good agreement with coupled-wave theory. In contrast, we demonstrate that first-order-feedback cavities remain “dark” above the lasing threshold and the output signal leaves the cavity as propagating SPPs, highlighting the potential of such lasers as on-chip sources of plasmons.

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“…By designing SLR modes to overlap with the PL emission, lasing can be supported at the SLR wavelength. Unlike surface plasmon polariton and localized surface plasmon laser designs that lack beam directionality, − plasmonic NP lattices as metasurfaces can facilitate directional emission with a low divergence angle, which results from the near-zero group velocity at photonic band edges. ,− …”

Section: Integration Of Emitters and Metasurfacesmentioning

confidence: 99%

Light–Matter Interactions in Hybrid Material Metasurfaces

et al. 2022

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This Review focuses on the integration of plasmonic and dielectric metasurfaces with emissive or stimuli-responsive materials for manipulating light–matter interactions at the nanoscale. Metasurfaces, engineered planar structures with rationally designed building blocks, can change the local phase and intensity of electromagnetic waves at the subwavelength unit level and offers more degrees of freedom to control the flow of light. A combination of metasurfaces and nanoscale emitters facilitates access to weak and strong coupling regimes for enhanced photoluminescence, nanoscale lasing, controlled quantum emission, and formation of exciton–polaritons. In addition to emissive materials, functional materials that respond to external stimuli can be combined with metasurfaces to engineer tunable nanophotonic devices. Emerging metasurface designs including surface-functionalized, chemically tunable, and multilayer hybrid metasurfaces open prospects for diverse applications, including photocatalysis, sensing, displays, and quantum information.

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Spatial Intensity Distribution in Plasmonic Particle Array Lasers

Cited by 10 publications

References 57 publications

Lattice Resonances Induced by Periodic Vacancies in Arrays of Nanoparticles

Lattice Resonances Induced by Periodic Vacancies in Arrays of Nanoparticles

Compact Plasmonic Distributed-Feedback Lasers as Dark Sources of Surface Plasmon Polaritons

Light–Matter Interactions in Hybrid Material Metasurfaces

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