Photonic-Plasmonic Scattering Resonances in Deterministic Aperiodic Structures

Gopinath, Ashwin; Boriskina, Svetlana V.; Feng, Ning‐Ning; Reinhard, Björn M.; Negro, Luca Dal

doi:10.1021/nl8013692

Cited by 147 publications

(161 citation statements)

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“…The proposed concept relies on the specific optical properties of deterministic aperiodic photonic surfaces, which lack translational invariance symmetry (they are nonperiodic) and are generated by simple constructive rules (12,13). Such structures, which can be fabricated using conventional lithographic techniques, are an intermediate regime between periodic and disordered systems, yet are engineered according to mathematical rules amenable to predictive theories.…”

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confidence: 99%

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Spatial and spectral detection of protein monolayers with deterministic aperiodic arrays of metal nanoparticles

Lee

Amsden²,

Boriskina

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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Light scattering phenomena in periodic systems have been investigated for decades in optics and photonics. Their classical description relies on Bragg scattering, which gives rise to constructive interference at specific wavelengths along well defined propagation directions, depending on illumination conditions, structural periodicity, and the refractive index of the surrounding medium. In this paper, by engineering multifrequency colorimetric responses in deterministic aperiodic arrays of nanoparticles, we demonstrate significantly enhanced sensitivity to the presence of a single protein monolayer. These structures, which can be readily fabricated by conventional Electron Beam Lithography, sustain highly complex structural resonances that enable a unique optical sensing approach beyond the traditional Bragg scattering with periodic structures. By combining conventional dark-field scattering micro-spectroscopy and simple image correlation analysis, we experimentally demonstrate that deterministic aperiodic surfaces with engineered structural color are capable of detecting, in the visible spectral range, protein layers with thickness of a few tens of Angstroms.biosensing | colorimetric fingerprint | deterministic aperiodic system | nanophotonics

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“…1 B-D. We focus here on three main types of deterministic aperiodic structures with varying degree of structural disorder. Specifically, we focus on Thue-Morse (12)(13)(14)(15)17) (Fig. 1B), Rudin-Shapiro (12-15, 18) (Fig.…”

mentioning

confidence: 99%

Spatial and spectral detection of protein monolayers with deterministic aperiodic arrays of metal nanoparticles

Lee

Amsden²,

Boriskina

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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“…19,20 In particular, these latter results indicated the possibility of exciting broad resonances with enhanced spatial localization, higher density of the enhanced field states, and distinctive scattering fingerprints.…”

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confidence: 85%

Evidence of guided resonances in photonic quasicrystal slabs

Ricciardi¹,

Pisco²,

Cutolo³

et al. 2011

Phys. Rev. B

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We report on the experimental evidence of Fano-type guided resonances (GRs) in aperiodically-ordered photonic quasicrystal slabs. With specific reference to the Ammann-Beenker (8-fold symmetric, quasiperiodic) octagonal tiling geometry, we present our experimental results on silicon-on-insulator devices operating at near-infrared wavelengths, and compare them with the full-wave numerical predictions based on periodic approximants. Our results indicate that spatial periodicity is not strictly required for the GR excitation, and may be effectively surrogated by weaker forms of long-range aperiodic order which intrinsically provide extra degrees of freedom (e.g., higher-order rotational symmetries, richer defect states and phase-matching conditions, etc.) to be exploited in the design and performance optimization of nanostructured dielectric slabs operating in the out-of-plane configuration. The essential spectral features may be qualitatively understood in terms of phase-matching conditions derived from approximate homogenized models, and turn out to be effectively captured by full-wave modeling based on suitably-sized periodic approximants. The discovery, in 1984, of "quasicrystals" in solid-state physics 1,2 has triggered a growing interest in the study of aperiodically-ordered structures (based, e.g., on aperiodic tilings 3 ) in many branches of physics and engineering. 4 In particular, photonic quasicrystals (PQCs) have been widely investigated, [5][6][7] with the main focus on in-plane electromagnetic (EM) propagation effects in two-dimensional structures constituted of aperiodically-ordered arrangements of cylindrical inclusions (or holes) in a host medium. In this framework, certain effects observable in periodic photonic crystals (PCs), such as band gap, field localization, negative refraction and super-focusing, directive emission, etc., have been reproduced numerically and experimentally (see, e.g., Refs. 5-7 and references therein). The related studies provided useful insights in the influence of higher-order rotational symmetries, Bragg-type and multiple scattering, and shortrange interactions.8 Moreover, they also envisaged some potential advantages inherently tied to aperiodic order, such as easier achievement of phase-matching conditions, 9 higher isotropy and tradeoff between (lower) dielectric contrast and (higher) rotational symmetry, 10 richer and more wavelengthselective defect states, 11 field-localization capabilities even in the absence of lattice defects, 12 etc. In this framework, novel design strategies especially tailored to exploit the peculiar aspects and further degrees of freedom inherent of aperiodic order have been developed (see, e.g., Refs. 13 and 14).Much less attention has been devoted to out-of-plane propagation effects, with the notable exceptions of arrays of subwavelength holes in metallic films, [15][16][17][18] and arrays of metallic nanoparticles. 19,20 In particular, these latter results indicated the possibility of exciting broad resonances with enhanced spatial locali...

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“…56,57 In this approach the electromagnetic field is constructed as a superposition of partial fields scattered by each sphere expanded in the orthogonal basis of vector spherical harmonics:…”

Section: Computational Electromagneticsmentioning

confidence: 99%

Illuminating Epidermal Growth Factor Receptor Densities on Filopodia through Plasmon Coupling

Wang

Boriskina

Wang

et al. 2012

Imaging and Applied Optics Technical Papers

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Filopodia have been hypothesized to act as remote sensors of the cell environment but many details of the sensor function remain unclear. We investigated the distribution of the epidermal growth factor (EGF) receptor (EGFR) density on filopodia and on the dorsal cell membrane of A431 human epidermoid carcinoma cells using a nanoplasmonic enabled imaging tool. We targeted cell surface EGFR with 40 nm diameter Au nanoparticles (NPs) using a high affinity multivalent labeling strategy and determined relative NP binding affinities spatially resolved through plasmon coupling. Distance dependent near-field interactions between the labels generated a NP density (ρ) dependent spectral response that facilitated a spatial mapping of the EGFR density distribution on subcellular length scales in an optical microscope in solution. The measured ρ values were significantly higher on filopodia than on the cellular surface, which is indicative of an enrichment of EGFR on filopodia. A detailed characterization of the spatial distribution of the NP immunolabels through scanning electron microscopy (SEM) confirmed the findings of the all-optical plasmon coupling studies and provided additional structural details. The NPs exhibited a preferential association with the sides of the filopodia. We calibrated the ρ-dependent spectral response of the Au immunolabels through correlation of optical spectroscopy and SEM. The experimental dependence of the measured plasmon resonance wavelength (λ res ) of the interacting immunolabels on ρ was well described by the fit λ res = 595.0nm − 46.36nm*exp(−ρ/51.48) for ρ ≤ 476 NPs/μm 2 . The performed correlated spectroscopic/SEM studies pave the way towards quantitative immunolabeling studies of EGFR and other important cell surface receptors in an optical microscope. KeywordsEpidermal Growth Factor Receptor; Filopodia; Immunolabels; Molecular Imaging; Nanoplasmonics; Receptor Clustering; Nano-Bio Interface Cell motility is a key requirement for natural growth processes, such as wound healing and embryonic development, but dysregulated cell motility enables aggressive tumor invasion in cancer. 1 Any cell translocation during normal or pathological growth requires a propelling force. The latter is generated by a branched actin network in a cytoplasmic extension -the lamellipodium -at the leading edge of moving cells. 2 Lamellipodia can contain spike-like protrusions with parallel actin bundles, which are referred to as filopodia. 3,4 A series of diverse biological functions have been attributed to filopodia, but in many cases the exact mechanisms underlying the biological function remain insufficiently characterized. 5 One proposed filopodia function is that of sensory antennae for chemotaxis in the extended environment of the cell body. In normal growth processes in vivo, individual cells usually bmr@bu.edu. Supporting Information available: Figures S1-S4. This material is available free of charge via the Internet at http://pubs.acs.org. NIH Public AccessAuthor Manuscript ACS Nano. Author ma...

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Photonic-Plasmonic Scattering Resonances in Deterministic Aperiodic Structures

Cited by 147 publications

References 56 publications

Spatial and spectral detection of protein monolayers with deterministic aperiodic arrays of metal nanoparticles

Spatial and spectral detection of protein monolayers with deterministic aperiodic arrays of metal nanoparticles

Evidence of guided resonances in photonic quasicrystal slabs

Illuminating Epidermal Growth Factor Receptor Densities on Filopodia through Plasmon Coupling

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