Effective Mode Volume of Nanoscale Plasmon Cavities

Maier, Stefan A.

doi:10.1007/s11082-006-0024-7

Cited by 77 publications

(52 citation statements)

References 32 publications

(24 reference statements)

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“…consistently with experimental observations. 16 In Fig. 4b, we show the scattering cross-section spectra of the bare nanorod (blue) and the perturbed nanorod (5-nm shell, red).…”

Section: Local Field Correctionsmentioning

confidence: 99%

Simple Analytical Expression for the Peak-Frequency Shifts of Plasmonic Resonances for Sensing

2015

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We derive a closed-form expression that accurately predicts the peak frequency-shift and broadening induced by tiny perturbations of plasmonic nanoresonators without critically relying on repeated electrodynamic simulations of the spectral response of nanoresonator for various locations, sizes or shapes of the perturbing objects. The force of the present approach, in comparison with other approaches of the same kind, is that the derivation is supported by a mathematical formalism based on a rigorous normalization of the resonance modes of nanoresonators consisting of lossy and dispersive materials. Accordingly, accurate predictions are obtained for a large range of nanoparticle shapes and sizes, used in various plasmonic nanosensors, even beyond the quasistatic limit. The expression gives quantitative insight, and combined with an open-source code, provides accurate and fast predictions that are ideally suited for preliminary designs or for interpretation of experimental data. It is also valid for photonic resonators with large mode volumes. KEYWORDS: refractive index sensing, surface plasmon resonance, quasi normal mode, nanoparticle, plasmonics Introduction. In recent years, metallic nanoparticles have gained a lot of attention and also witnessed successful applications in various fields of nanosciences. As their near-fields support strong and highly-confined resonances, metallic nanoparticles can effectively convert local changes of refractive index into frequency shifts of the resonance.

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“…consistently with experimental observations. 16 In Fig. 4b, we show the scattering cross-section spectra of the bare nanorod (blue) and the perturbed nanorod (5-nm shell, red).…”

Section: Local Field Correctionsmentioning

confidence: 99%

Simple Analytical Expression for the Peak-Frequency Shifts of Plasmonic Resonances for Sensing

2015

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“…Some care must be taken in rigorous mode volume calculations in these systems [58], [59]. For a medium with negative dielectric constant, appropriate approximations must be used to avoid negative energy density terms.…”

Section: B Purcell Enhancement Of Spontaneous Emissionmentioning

confidence: 99%

Quantum Plasmonic Circuits

Leon

Lukin

Park

2012

IEEE J. Select. Topics Quantum Electron.

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Interactions between light and matter can be dramatically modified by concentrating light into a small volume for a long period of time. Gaining control over such interaction is critical for realizing many schemes for classical and quantum information processing, including optical and quantum computing, quantum cryptography, and metrology and sensing. Plasmonic structures are capable of confining light to nanometer scales far below the diffraction limit, thereby providing a promising route for strong coupling between light and matter, as well as miniaturization of photonic circuits. At the same time, however, the performance of plasmonic circuits is limited by losses and poor collection efficiency, presenting unique challenges that need to be overcome for quantum plasmonic circuits to become a reality. In this paper, we survey recent progress in controlling emission from quantum emitters using plasmonic structures, as well as efforts to engineer surface plasmon propagation and design plasmonic circuits using these elements.

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“…In comparison between a nanoscale plasmon cavity and a dielectric optical one, it has been shown that the effective electromagnetic mode volume is not limited by diffraction in the former structures (Maier 2006).…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional gap plasmon power splitters suitable for photonic integrated circuits

2010

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In this paper we have investigated the performance of a nano-optical power splitter based on gap plasmon waveguides. The structure consists of the rectangular gap plasmon waveguides in metal films. It is clear that the wave number and correspondingly light confinement and the loss in the waveguides are the most effective parameters in power splitting, but as we know coupling length is another important factor which should be considered. Some dependencies of the coupling length and the maximum transfer power on the structure parameters are studied. It has been shown that approximately 43% transfer power for each arm of the splitter is achievable. Simulation results have been obtained by the compact finitedifference time-domain method. The considered structures, because of their small coupling length and dimensions are appropriate for implementation in photonic integrated circuits.

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Effective Mode Volume of Nanoscale Plasmon Cavities

Cited by 77 publications

References 32 publications

Simple Analytical Expression for the Peak-Frequency Shifts of Plasmonic Resonances for Sensing

Simple Analytical Expression for the Peak-Frequency Shifts of Plasmonic Resonances for Sensing

Quantum Plasmonic Circuits

Three-dimensional gap plasmon power splitters suitable for photonic integrated circuits

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