Double nanohole apex-enhanced transmission in metal films

Kumar, Labeesh; Lesuffleur, Antoine; Hughes, M.C.; Gordon, Reuven

doi:10.1007/s00340-006-2291-1

Cited by 33 publications

(20 citation statements)

References 12 publications

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“…The shape-enhanced LSPR in the periodic double-hole array improves its refractive index sensitivity, transmission efficiency, 17 sharpness of resonance, and polarization selectivity compared to circular nanohole array. These are all important parameters to enhance the adsorbate detection sensitivity, resolution, and signal-to-noise ratio of real-time multiplex biosensors.…”

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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“…Recently, optical properties of gold films with a periodic array of double nanoholes (DNH) have been experimentally studied and certain physical aspects of it, confirmed by numerical simulations [3]. A DNH is a composite geometry that is created by overlapping two circular holes by a particular distance ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Refractive index sensor performance based on enhanced transmission of light through perforated metallic films

Iyer

Dong

Popov

et al. 2010

Asia Communications and Photonics Conference and Exhibition

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“…Gordon's group has systematically investigated the optical properties of this double-hole shaped OAN. [80][81][82] Figure 5(d) shows the fluorescence correlation spectroscopy analysis and the corresponding temporal correlation of the intensity traces, which illustrates a reduced number of molecules within the nanoscale detection volume when the excitation is set parallel to the apex region. The confocal measurement for the reference solution demonstrates a reasonably high average fluorescence intensity as shown by the green curve in Fig.…”

Section: Enhanced Single-molecule Detection At Physiological Concentrmentioning

confidence: 99%

Review of optical detection of single molecules beyond the diffraction and diffusion limit using plasmonic nanostructures

2017

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Single-molecule detection has become a unique and indispensable tool for the study of molecular motions and interactions at the single-molecule level. Unlike ensemble measurement where the information is averaged, single-molecule analysis yields invaluable information on both the individual molecular properties and their microenvironment. Among the various technologies for the detection of single molecules, the detection with optical methods has many advantages in terms of its high sensitivity, electrical passiveness, and robustness. The recent advances in the engineering of either the excitation light or the solution of the molecules have paved the way for enhanced single-molecule detection. We present recent developments and future perspectives for single-molecule detection in the following three regimes: on a dry surface, in solutions at ultralow concentrations, and in solutions at native physiological concentrations.

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Double nanohole apex-enhanced transmission in metal films

Cited by 33 publications

References 12 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

Refractive index sensor performance based on enhanced transmission of light through perforated metallic films

Review of optical detection of single molecules beyond the diffraction and diffusion limit using plasmonic nanostructures

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