Plasmonic Crystals: Controlling Light With Periodically Structured Metal Films

Dickson, Wayne; Wurtz, Gregory A.; Zayats, Anatoly V.

doi:10.1002/9781119011781.ch3

Cited by 2 publications

(4 citation statements)

References 120 publications

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“…Three different designs with different shapes and sizes of nanofeatures were investigated in this study: a CA sample with grooves, prepared on a linear PDMS stamp with 417 nm period, a CA sample with rectangular posts with a lattice period of 700 nm prepared on a PDMS stamp, and a sample prepared directly on the silicon mold, resulting in rectangular holes with the same period of 700 nm. Both the lattice period and the shape of the features in a plasmonic crystal affect the excitation rate of plasmons . Localized as well as surface plasmon polaritons can be supported by the structure, with multiple plasmon modes often being generated, resulting in interaction and mixing processes. , Because the lattice period should be on the order of the surface plasmon wavelength, molds with a lattice period close to that of the green laser light (532 nm) were chosen for the experiment.…”

Section: Resultsmentioning

confidence: 99%

“…Both the lattice period and the shape of the features in a plasmonic crystal affect the excitation rate of plasmons. 44 Localized as well as surface plasmon polaritons can be supported by the structure, with multiple plasmon modes often being generated, resulting in interaction and mixing processes. 45 , 46 Because the lattice period should be on the order of the surface plasmon wavelength, molds with a lattice period close to that of the green laser light (532 nm) were chosen for the experiment.…”

Section: Resultsmentioning

confidence: 99%

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Cellulose Acetate-Based Plasmonic Crystals for Surface-Enhanced Raman and Fluorescence Spectroscopy

2022

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In order to meet environmental concerns, there is an increasing demand for biodegradable and sustainable materials in many areas, including photonics. Cellulose and its derivatives are potentially eco-friendly alternatives to conventional plastics, because of their abundance and lower environmental impact. Here, we report the fabrication of plasmonic structures by molding cellulose acetate into submicrometric periodic lattices, using soft lithography. The fabricated platforms can be used for the enhancement of Raman and fluorescence signals of a range of analytes including a model immunoassay utilizing a streptavidin-conjugated dye, which is characterized by a 23-fold enhancement in fluorescence signal intensity, which shows the potential of the platform to be further used for the assay-based development of diagnostic tools.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Cellulose Acetate-Based Plasmonic Crystals for Surface-Enhanced Raman and Fluorescence Spectroscopy

2022

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“…The optical properties of passive plasmonic crystals consisting of thin metallic films patterned with a two dimensional array of holes have been studied extensively in the past both from the fundamental point of view [16,37] and for biosensor applications [18,38,39]. In this section, we describe both the passive and active optical properties of the proposed plasmonic crystal structure.…”

Section: Principle Of Operation and Structure Analysismentioning

confidence: 99%

“…The optical properties of the structure are determined to a large extent by the plasmonic Bloch modes supported by the film [37]. These modes are p-polarized and can be categorized into symmetric or antisymmetric modes depending on whether the main magnetic field component has even or odd symmetry with respect to the z = 0 plane, respectively.…”

Section: A Passive Structurementioning

confidence: 99%

High-Q plasmonic crystal laser for ultra-sensitive biomolecule detection

Sun

Wang

Jafari

et al. 2020

Preprint

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Plasmonic lasers provide a paradigm-changing approach for the generation of coherent light at the nanoscale. In addition to the usual properties of coherent radiation, the emission of plasmonic lasers can feature high sensitivity to the surrounding environment, which makes this technology attractive for developing high-performance and highly-integrated sensing devices. Here, we investigate a plasmonic laser architecture based on a high-Q plasmonic crystal consisting of a periodic arrangement of nanoholes on a thin gold film cladded with an organic-dye-doped SiO2 gain layer as the gain material. We report an extensive full-wave numerical analysis of the device's lasing performance and its application as a biochemical sensor, showing that the proposed design features excellent figures of merit for surface sensing that in principle can be over an order of magnitude larger than those of previously reported high-performance plasmonic biosensor architectures.

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Plasmonic Crystals: Controlling Light With Periodically Structured Metal Films

Cited by 2 publications

References 120 publications

Cellulose Acetate-Based Plasmonic Crystals for Surface-Enhanced Raman and Fluorescence Spectroscopy

Cellulose Acetate-Based Plasmonic Crystals for Surface-Enhanced Raman and Fluorescence Spectroscopy

High-Q plasmonic crystal laser for ultra-sensitive biomolecule detection

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