Spectral properties of plasmonic resonator antennas

Barnard, Edward S.; White, Justin S.; Chandran, Anu; Brongersma, Mark L.

doi:10.1364/oe.16.016529

Cited by 135 publications

(137 citation statements)

References 26 publications

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“…36,37 An independent simulation using the full- (216-5.5j) Ω, which is comparable to impedances of two-wire transmission lines at radio frequencies. 32 The robustness of this method is confirmed by the very weak dependence of Z 0 on the choice of the integration path (∆Z 0 < 6%), which is due to the weak inhomogeneity of the field distribution inside the gap.…”

Section: Properties Of the Nanosize Two-wire Optical Transmission Linementioning

confidence: 99%

“…32 From this we obtain a decay length of 1190 nm and an effective wavelength of 224 nm, which is much shorter than the free space wavelength. 36,37 An independent simulation using the fullvectorial finite-difference frequency-domain (FDFD) method 38 ) Ω, which is comparable to impedances of two-wire transmission lines at radio frequencies. 32 The robustness of this method is confirmed by the very weak dependence of Z 0 on the choice of the integration path (∆Z 0 < 6%), which is due to the weak inhomogeneity of the field distribution inside the gap.…”

Section: Properties Of the Nanosize Two-wire Optical Transmission Linementioning

confidence: 99%

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Impedance Matching and Emission Properties of Nanoantennas in an Optical Nanocircuit

et al. 2009

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An experimentally realizable prototype nanophotonic circuit consisting of a receiving and an emitting nano antenna connected by a two-wire optical transmission line is studied using finite-difference time-and frequency-domain simulations. To optimize the coupling between nanophotonic circuit elements we apply impedance matching concepts in analogy to radio frequency technology. We show that the degree of impedance matching, and in particular the impedance of the transmitting nano antenna, can be inferred from the experimentally accessible standing wave pattern on the transmission line. We demonstrate the possibility of matching the nano antenna impedance to the transmission line characteristic impedance by variations of the antenna length and width realizable by modern microfabrication techniques. The radiation efficiency of the transmitting antenna also depends on its geometry but is independent of the degree of impedance matching. Our systems approach to nanophotonics provides the basis for realizing general nanophotonic circuits and a large variety of derived novel devices. 3 IntroductionMiniaturization and packaging density of integrated optics based on dielectrics is limited by the wavelength scale modal profiles of guided modes. 1 In contrast, plasmonic modes on noble metal nanostructures offer strong subwavelength confinement and therefore promise the realization of nanometer-scale integrated optical circuitry. 2,3 A truly subwavelength integrated photonic circuit based on plasmonic nano structures will generally consist of (i) a set of optical antennas 4,5,6,7 to efficiently excite specific local modes by far-field radiation, (ii) a very small footprint network of optical transmission lines 8 (OTLs) to distribute and manipulate plasmonic excitations, 9,10,11,12,13,14,15,16 and (iii) another set of optical antennas to efficiently convert local modes into propagating photons. The properties of metal nanoparticle chains, 17,18 metal nanowires, 19,20 line defects in plasmonic photonic crystals, 21 as well as gaps 22,23,24, and v-shaped grooves 9,25,26 in extended metal films have been explored as subwavelength waveguides for light.Efficient launching of specific guided modes on such structures is difficult since it requires matching of both, the small mode extension and the k-vector. It has been shown recently that efficient coupling between far-field photons and subwavelength spatial domains can be achieved using resonant optical antennas. 5,7,27,28,29,30,31 However, so far optical antennas have mostly been studied as isolated elements. Here we consider optical antennas as integral parts of an experimentally realizable integrated nanophotonic circuit where they act as efficient interfacing elements between propagating photons and guided modes of a plasmonic two-wire transmission line. We show by simulations that the principles of classical transmission line theory, e.g. impedance matching, 32 between the two-wire OTL and dipole antennas are fully applicable at optical frequencies. We further suggest tha...

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Section: Properties Of the Nanosize Two-wire Optical Transmission Linementioning

confidence: 99%

Section: Properties Of the Nanosize Two-wire Optical Transmission Linementioning

confidence: 99%

Impedance Matching and Emission Properties of Nanoantennas in an Optical Nanocircuit

et al. 2009

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“…1a, which depicts two 20-nm-thick Au electrodes of different widths on a QW ridge. Each electrode supports a distinct SPP resonance when their widths are approximately an integer number, m, of half SPP wavelengths (w≈mλ SPP /2) [23][24][25] as indicated by the magnetic field amplitude maps within the semiconductor. When current is injected into the QW via the antenna electrodes and the substrate, EL is emitted with an angular emission pattern that is characteristic to the electrode dimensions.…”

Section: Proposed Plasmonic Antenna-electrode Platformmentioning

confidence: 99%

Antenna electrodes for controlling electroluminescence

et al. 2012

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optical antennas can control the emission from quantum emitters by modifying the local density of optical states via the Purcell effect. A variety of nanometallic antennas have been implemented to enhance and control key photoluminescence properties, such as the decay rate, directionality and polarization. However, their implementation in active devices has been hampered by the need to precisely place emitters near an antenna and to efficiently excite them electrically. Here we illustrate a design methodology for antenna electrodes that for the first time facilitates simultaneous operation as electrodes for current injection and as antennas capable of optically manipulating the electroluminescence. We show that by confining the electrically excited carriers to the vicinity of antenna electrodes and maximizing the optical coupling of the emission to a single, well-defined antenna mode, their electroluminescence can be effectively controlled. This work spurs the development of densely integrated, electrically driven light sources with tailored emission properties.

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“…SPP can be widely used to solve various problems of modern science and technology [3][4][5][6][7]. A large number of works devoted to the modeling of nano-antennas, based on SPP's excitation effect [8][9]. A FabryPerot model was formulated that predicts both the peak position and spectral shape of optical resonances for short-range SPP.…”

Section: Introductionmentioning

confidence: 99%

“…A FabryPerot model was formulated that predicts both the peak position and spectral shape of optical resonances for short-range SPP. The authors used full-field simulation based on the finite-difference time-domain method (FDTD-method) to calculate the parameters for this model [8]. Whereas, some other authors used rectangular gold and silver nano-strips embedded in glass or water.…”

Section: Introductionmentioning

confidence: 99%

Formation of Plasmonic Nanojets by Silver Nano-Strip

Козлова¹,

Samara²

2016

Collection of Selected Papers of the II International Conference on Information Technology and Nanotechnology

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Abstract. In this work the "central" surface plasmon-polariton was obtained by using frequency dependent difference time-domain method for the TMpolarized light at 532 nm, which was propagating through the silver nano-strip, placed on silica glass in an aqueous medium. The height and width of nanostrip was equal to 20 nm and 215 nm respectively. The intensity of surface plasmon-polariton was 4 times higher the intensity of the incident radiation. The full width at half maximum of the nanojet was 138 nm.Keywords: surface plasmon-polariton, nano-strip, (FD) 2 TD-method.Citation: Kozlova ES. Formation of plasmonic nanojets by silver nano-strip.

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Spectral properties of plasmonic resonator antennas

Cited by 135 publications

References 26 publications

Impedance Matching and Emission Properties of Nanoantennas in an Optical Nanocircuit

Impedance Matching and Emission Properties of Nanoantennas in an Optical Nanocircuit

Antenna electrodes for controlling electroluminescence

Formation of Plasmonic Nanojets by Silver Nano-Strip

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