Plasmonic optical properties of a single gold nano-rod

Huang, Hung Ji; Yu, Chao; Chang, Hao‐Chin; Chiu, King-Wah; Chen, Hao Ming; Liu, Ru‐Shi; Tsai, Din Ping

doi:10.1364/oe.15.007132

Cited by 66 publications

(42 citation statements)

References 33 publications

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“…Many groups have explored the LSP resonance frequency of noble metal nanorods fabricated by the electrochemical deposition approach [66][67][68][69][70][71][72], solution phase route [42,[73][74][75], and electron beam lithograph technique [76]. Liu and co-workers presented a new approach to fabricate Au nanorods by controlling the volume of the growth solution [73,75].…”

Section: Metal Nanorodsmentioning

confidence: 99%

Nanostructures for surface plasmons

Zhang

2012

Adv. Opt. Photon.

115

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Surface plasmons (SPs) are electromagnetic excitations existing at the interface between a metal and a dielectric material. Control and manipulation of light based on SPs at the nanometer scale offers significant advantages in nanophotonic devices with very small elements, since the peculiar properties of SPs can be tailored by construction of nanostructures with various interfaces between metals and dielectric materials. Recent progress in nanostructures for SPs is reviewed. Resonance frequencies or wavelengths of SPs can be tuned by design of metal nanostructures, such as nanoparticles, nanorods, nanowires, nanosheets, and nanodisks. Moreover, SP resonance modes can also be tuned by control of the shapes and sizes of nanostructures, where the resonance modes include longitudinal and transversal resonances, dipolar and multipolar resonances, and Fano resonances. Based on SP coupling for metal nanostructures, metal-semiconductor nanostructures, metal-dielectric nanostructures, and metal-polymer nanostructures, propagating and guiding of SP can be achieved through the metal nanostructures and the hybrid structures. Additionally, metal nanostructures exhibit remarkable field enhancement effects (e.g., local near-field enhancement, and optical transmission enhancement) due to SP coupling. Furthermore, SP nanostructures perform unique focusing and imaging characteristics at the nanometer scale beyond the diffraction limit. Tailoring SPs by control of the nanostructures is expected to be used for design and development of high-performance optical components and circuits, which offer both potential and challenges for new generations of nanophotonic devices.

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Section: Metal Nanorodsmentioning

confidence: 99%

Nanostructures for surface plasmons

Zhang

2012

Adv. Opt. Photon.

115

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“…Near-field techniques, which include scanning optical microscopy [35,36] and tip-enhanced photoluminescence [37], allow one to map local-field enhancements. However, these techniques have limited spatial and/or energy resolution.…”

Section: Introductionmentioning

confidence: 99%

Localized Plasmonic Resonances of Prolate Nanoparticles in a Symmetric Environment: Experimental Verification of the Accuracy of Numerical and Analytical Models

et al. 2018

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We study the evolution of the surface-plasmon resonances of individual ion-beam-shaped prolate gold nanoparticles embedded in a dielectric SiO 2 environment by electron-energy-loss spectroscopy mapping in a scanning transmission electron microscope. The controlled symmetric dielectric environment obtained through the ion-beam-shaping method allows a direct quantitative comparison with numerical results obtained through simulations (auxiliary differential-equation finite-difference time-domain and boundary-element method) and with theoretical results obtained through analytical models (quasistatic model for prolate nanoellipsoids and waveguide model for infinite one-dimensional plasmonic waveguides), with which our experimental results are in very good agreement. We confirm the accuracy of state-of-the-art numerical tools and analytical theories that establish ion-beam shaping as a very promising method to design metal-dielectric nanocomposites with well-predicted optical properties, and with many possible applications in surfaceenhanced Raman spectroscopy and second-harmonic generation, as well as in conventional applications of metamaterials like negative refraction, superimaging, and invisibility cloaking.

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“…Recently, intense efforts have been devoted to the investigation of the properties of individual Ag and Au nanostructures including nanoparticles (NPs) and nanorods by optical imaging [6][7][8][9][10][11]. This is owing to the spatial distribution of the electric field near the nanorods and NPs while how the associated SP modes play roles are still not fully understood [9].…”

Section: Introductionmentioning

confidence: 99%

Polarization-Dependent Confocal Imaging of Individual Ag Nanorods and Nanoparticles

You

Zhang

et al. 2009

Plasmonics

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Polarization-dependent inelastic optical scattering (IOS) of individual Ag nanorods and nanoparticles are studied by confocal imaging. Stronger IOS is observed at two ends of the nanorod with laser polarizing parallel to the rod long axis while the IOS images of Ag nanoparticles elongate along laser polarization direction. The correlation between the far-field IOS image and near-field spatial distributions of the nanostructures′ electric field can be obtained. The IOS imaging is demonstrated to be an effective technique to study the optical properties of metal nanostructures, which also provides information for their applications in surface-enhanced Raman scattering.

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Plasmonic optical properties of a single gold nano-rod

Cited by 66 publications

References 33 publications

Nanostructures for surface plasmons

Nanostructures for surface plasmons

Localized Plasmonic Resonances of Prolate Nanoparticles in a Symmetric Environment: Experimental Verification of the Accuracy of Numerical and Analytical Models

Polarization-Dependent Confocal Imaging of Individual Ag Nanorods and Nanoparticles

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