Apex-enhanced second-harmonic generation by using double-hole arrays in a gold film

Lesuffleur, Antoine; Kumar, Labeesh; Gordon, Reuven

doi:10.1103/physrevb.75.045423

Cited by 39 publications

(31 citation statements)

References 24 publications

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“…More recently, it was shown that the shape of the nanoholes in metals can modulate their optical transmission properties. [8][9][10][11] Lesuffleur et al demonstrated that the presence of sharp apexes in nanoscale double-hole structure can boost the local field intensity, transmission efficiency, and polarization selectivity compared to circular nanohole arrays. 10 It has been demonstrated that such an effect involves localized SPR ͑LSPR͒.…”

Section: ͑1͒mentioning

confidence: 97%

Periodic nanohole arrays with shape-enhanced plasmon resonance as real-time biosensors

Lesuffleur

Lindquist

et al. 2007

Applied Physics Letters

269

184

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The authors report a combination of the enhanced transmission effect and shape resonances in a periodic array of nanoscale double-hole structures in a gold film to enhance the detection sensitivity of surface plasmon biosensors. Finite-difference time-domain calculations are used to quantify field enhancement at the apexes of the double-hole structure. The double-hole array was used to measure the formation of a self-assembled monolayer and for real-time sensing of protein adsorption onto a gold surface. This result demonstrates the potential to integrate propagating surface plasmons and localized shape resonances to improve real-time biosensors.

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Section: ͑1͒mentioning

confidence: 97%

Periodic nanohole arrays with shape-enhanced plasmon resonance as real-time biosensors

Lesuffleur

Lindquist

et al. 2007

Applied Physics Letters

269

184

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“…These apexes act to focus the light to 10-nm-length scales. Recently, we have shown second harmonic generation using double nanohole arrays with a 14-times enhancement with respect to single hole arrays (Lesuffleur et al 2007a). This enhancement is especially significant considering that the overall excitation laser power was not changed; rather it was focused to an extreme nanoscopic region about the apexes of the holes.…”

Section: Field and Spectroscopic Enhancements With Nanohole Arraysmentioning

confidence: 98%

Nanohole arrays in metal films as optofluidic elements: progress and potential

Sinton

Gordon

Brolo

2007

Microfluid Nanofluid

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Subwavelength holes in metal films exhibit coupled optical phenomena specific to structure geometry, incident light and properties of the near-surface medium. As optofluidic components, nanohole arrays in metal films present several opportunities. This review provides an overview of the unique optical characteristics of such arrays, with emphasis on their application in the micro and nano-fluidic environment. The majority of contributions in this area have focused on sensor applications, and the results of nanohole array based chemical and biomolecular sensors are reviewed here. Also relevant to on-chip analysis, various field and spectroscopic enhancements achieved with nanohole arrays are discussed. The general benefits and limitations of nanohole arrays for analytical applications are discussed in the context of existing tools. Beyond sensing, particle trapping and other potential optofluidic applications of nanohole arrays are discussed.

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“…Of particular interest are sharp tapers, since the surface plasmon is strongly confined as it travels to the tip of the taper. SHG from double-holes showed a pronounced increase when the double-holes were just touching to produce two sharp apexes [150,151], as shown in Fig. 14.…”

Section: Nonlinear Opticsmentioning

confidence: 75%

Resonant optical transmission through hole‐arrays in metal films: physics and applications

Gordon¹,

Brolo

Sinton

et al. 2010

Laser & Photonics Reviews

Self Cite

162

104

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Extraordinary optical transmission through an array of holes in a metal film was reported by Ebbesen and coworkers in 1998. Since that work there has been abundant research activity aimed at understanding the physics and at the development of the many applications associated with this phenomenon, hence the topic of this review. The study of hole-arrays in a metal is not new -theoretical contributions on a small-hole array date back to Lord Rayleigh's description of Wood's anomaly in 1907 and there has been considerable research on metal meshes and holearrays since 1962. Bethe's theory, adapted to treat hole-arrays, is the simplest theoretical description of the transmission resonance. Following a description of this basic theory, we present the research on the additional effects from variations in real metal properties at different wavelengths, film thickness, holeshape and lattice configuration. The many promising applications being developed using hole-arrays are examined, including polarization control, filtering, switching, nonlinear optics, surface plasmon resonance sensing, surface-enhanced fluorescence, surface-enhanced Raman scattering, absorption spectroscopy, and quantum interactions. Finally, the various approaches, developments in hole-array fabrication, and integration of hole-arrays into devices are described. (top left) Schematic of resonant transmission through nanohole array using scanning electron microscope image of as-fabricated sample. (top right) Microfluidic chip incorporating nanohole arrays. (bottom) Composite image of array of nanohole arrays used as sensors in a immunoassay-like microfluidic device, showing (left to right) schematic of microfluidic layout, microscope image of arrays in microfluidic channels, and laser transmission modified by adsorbed molecules.

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Apex-enhanced second-harmonic generation by using double-hole arrays in a gold film

Cited by 39 publications

References 24 publications

Periodic nanohole arrays with shape-enhanced plasmon resonance as real-time biosensors

Periodic nanohole arrays with shape-enhanced plasmon resonance as real-time biosensors

Nanohole arrays in metal films as optofluidic elements: progress and potential

Resonant optical transmission through hole‐arrays in metal films: physics and applications

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