Ultranarrow plasmon resonances from annealed nanoparticle lattices

Deng, Shikai; Li, Ran; Park, Jeong-Eun; Guan, Jun; Choo, Priscilla; Hu, Jingtian; Smeets, Paul J. M.; Odom, Teri W.

doi:10.1073/pnas.2008818117

Cited by 100 publications

(115 citation statements)

References 39 publications

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“…Notably, the full width at half-maximum of the linewidth is only Δ λ = 0.66 nm, corresponding to a Q -factor of Q = 2340. This value exceeds the record for plasmonic metasurfaces by an order of magnitude 34 , 37 , 40 and is among the highest reported in a metasurface. It is roughly within a factor of two of semi-analytic calculations performed using the lattice sum approach (LSA), where Q ~ 5000 (see “Methods” for details).…”

Section: Resultsmentioning

confidence: 52%

“…Recent theoretical studies of this platform have predicted Q -factors on the order of 10 3 by properly engineering the dimensions of the individual nanostructures and the period of the lattice 31 – 33 , hinting at the possibility of combining the aforementioned benefits of metals with long interaction times provided by high Q -factors. However, to date, the highest experimentally observed Q -factor in an SLR-based metasurface is 430 34 . The disparity between theory and experiment has been attributed to a variety of reasons, including poor spatial coherence of light beams 28 , 35 , small array sizes 30 , 31 , 36 , fabrication imperfections 30 , 31 , and the addition of an adhesion layer 37 .…”

Section: Introductionmentioning

confidence: 99%

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Ultra-high-Q resonances in plasmonic metasurfaces

et al. 2021

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Plasmonic nanostructures hold promise for the realization of ultra-thin sub-wavelength devices, reducing power operating thresholds and enabling nonlinear optical functionality in metasurfaces. However, this promise is substantially undercut by absorption introduced by resistive losses, causing the metasurface community to turn away from plasmonics in favour of alternative material platforms (e.g., dielectrics) that provide weaker field enhancement, but more tolerable losses. Here, we report a plasmonic metasurface with a quality-factor (Q-factor) of 2340 in the telecommunication C band by exploiting surface lattice resonances (SLRs), exceeding the record by an order of magnitude. Additionally, we show that SLRs retain many of the same benefits as localized plasmonic resonances, such as field enhancement and strong confinement of light along the metal surface. Our results demonstrate that SLRs provide an exciting and unexplored method to tailor incident light fields, and could pave the way to flexible wavelength-scale devices for any optical resonating application.

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Section: Resultsmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Ultra-high-Q resonances in plasmonic metasurfaces

et al. 2021

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“…[38,72] Compared with LSPR, SLR has a key feature of a very narrow linewidth (as shown in Figure 1e), attracting wide attentions in fields such as plasmonic lasing and sensing. [37,72,73,90] The basic property of SLR can be elucidated by using the coupled dipole approximation method. [91,92] In this approximation, each metal nanoparticle can be considered as a dipole with P i = α i E i , where α i is the polarizability of the ith particle and E i is the corresponding local field.…”

Section: Slrmentioning

confidence: 99%

“…Benefited from advanced fabrication methods and processing techniques, various ingenious metallic plasmonic array structures have been manufactured. It allows to conveniently tune their resonance modes, intensity, spectral shape, etc., facilitating their applications in various fields (see Figure 3), such as RI sensing (utilizing narrow resonance linewidth), [10,38] surface-enhanced spectroscopies (utilizing enhanced near-field), [152][153][154][155] plasmonic nanolasing (utilizing small mode volume and enhanced nearfield), [90,[156][157][158] and perfect light absorption (utilizing strong optical confinement and increased light absorption). [159][160][161] In this section, we systematically introduce and analyze the recent progress of metallic plasmonic arrays in the aforementioned fields.…”

Section: Applications Of Metallic Plasmonic Array Structuresmentioning

confidence: 99%

Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications

et al. 2021

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can efficiently couple light into nanostructures and confine light below diffraction limit. [8,9] With these properties, plasmonics have found important applications in various fields such as plasmonic sensing, [10][11][12][13] plasmon-enhanced spectroscopies, [14][15][16] plasmonic nanolasing, [17][18][19] and perfect light absorption. [20,21] The optical performances of plasmonic nanostructures are highly dependent on the resonance modes that they support. Generally, there are two fundamental surface plasmonic modes: localized surface plasmon resonance (LSPR) and propagating surface plasmon polaritons (SPP). [22,23] LSPR can be observed on metal nanoparticles. [22,24,25] However, the strong radiative damping of metal nanoparticles results in broad resonant spectra, severely limiting the applications of metal nanoparticles in fields such as plasmonic sensing and nanolasing. [26,27] SPP is usually generated at the interface between metal and dielectric with the assistance of a high refractive index prism or by constructing a grating structure. [23,28,29] The near-field decay length of SPP mode is 40-50 times larger than that of LSPR mode. [23] Therefore, SPP structures usually provide higher bulk sensitivity when used for plasmonic sensing. [23] However, it is difficult to achieve a flexible tuning of SPP mode only by above configurations. In addition, single resonance mode also greatly limits the applications of the devices.According to the plasmon hybridization theory, coupling of different resonance modes can endow plasmonic nanostructures with richer optical properties and thereby improve their performance and broaden their application fields. [30][31][32] Metallic plasmonic arrays have been demonstrated to be a powerful platform for the simultaneous excitation of the above two basic types of plasmonic modes. [33,34] In addition, they can also support many other types of resonance modes such as Fabry-Pérot (F-P) cavity mode, surface lattice resonance (SLR), and plasmonic Fano resonance due to the flexibility in structure design. [32,[35][36][37][38] These modes together give the nanostructured plasmonic arrays with attractive performance unattainable by using individual LSPR or SPP mode. Benefited from the abundant optical properties, nanostructured metallic plasmonic arrays can be utilized in a fashion of "device-by-design." For example, for plasmonic sensing, a plasmonic array with a narrow spectrum can be fabricated for an excellent sensing performance; [23,26] while for surface-enhanced Raman spectroscopy (SERS) detection, a plasmonic array with a relatively broad spectrum is needed to achieve local field enhancement and radiative enhancement simultaneously. [39,40] Therefore, the investigation The vast development of nanofabrication has spurred recent progress for the manipulation of light down to a region much smaller than the wavelength. Metallic plasmonic array structures are demonstrated to be the most powerful platform to realize controllable light-matter interactions and have found wide application...

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“…Collective lattice resonances (CLRs) are modes inherent to plasmonic or all-dielectric nanoparticles (NPs) arranged in a regular lattice, and observed at wavelengths close to Rayleigh anomalies of the lattice. Hybridization between broad resonances localized on a single NP with discrete states associated with the lattice periodicity implies exceptionally high-quality factors of CLRs observed in a number of experimental works [1][2][3][4][5]. CLRs in arrays of NPs have a rich history since pioneering works in the early 1980s [6][7][8], with a revival in the 2000s [9][10][11][12][13] and subsequent developing of a variety of CLRs-assisted applications [14][15][16][17][18] in biosensing, lasing, color printing, fluorescence enhancement, strong coupling, and nonlinear optics.…”

Section: Introductionmentioning

confidence: 99%

Multipolar Lattice Resonances in Plasmonic Finite-Size Metasurfaces

et al. 2021

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Collective lattice resonances in regular arrays of plasmonic nanoparticles have attracted much attention due to a large number of applications in optics and photonics. Most of the research in this field is concentrated on the electric dipolar lattice resonances, leaving higher-order multipolar lattice resonances in plasmonic nanostructures relatively unexplored. Just a few works report exceptionally high-Q multipolar lattice resonances in plasmonic arrays, but only with infinite extent (i.e., perfectly periodic). In this work, we comprehensively study multipolar collective lattice resonances both in finite and in infinite arrays of Au and Al plasmonic nanoparticles using a rigorous theoretical treatment. It is shown that multipolar lattice resonances in the relatively large (up to 6400 nanoparticles) finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in the infinite arrays. We argue that our results are of particular importance for the practical implementation of multipolar lattice resonances in different photonics applications.

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Ultranarrow plasmon resonances from annealed nanoparticle lattices

Cited by 100 publications

References 39 publications

Ultra-high-Q resonances in plasmonic metasurfaces

Ultra-high-Q resonances in plasmonic metasurfaces

Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications

Multipolar Lattice Resonances in Plasmonic Finite-Size Metasurfaces

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