Multiple-Wavelength Focusing of Surface Plasmons with a Nonperiodic Nanoslit Coupler

Tanemura, Takuo; Balram, Krishna C.; Ly-Gagnon, Dany-Sebastien; Wahl, Pierre; White, Justin S.; Brongersma, Mark L.; Miller, David A. B.

doi:10.1021/nl200938h

Cited by 138 publications

(115 citation statements)

References 26 publications

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“…Obviously, this spin dependent phase is limited between 0 to σπ because the mirror symmetry of the nano aperture. Meanwhile, the SPP pattern excited from a nano aperture is approximately that of an in-plane point dipole and exhibits an anti-phase radiation pattern relative to the long axis of nano aperture [37], which introduces an additional fixed phase σπ between the two sides of the long axis. These two phase components related to orientation angle φ and azimuthal angle α both contribute to the spin dependent phase at an observation point F [ Figure 1(c)].…”

Section: Simulation and Discussionmentioning

confidence: 99%

Controlling the plasmonic orbital angular momentum by combining the geometric and dynamic phases

et al. 2017

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Abstract:Tunable orbit angular momentum (OAM) of surface plasmon polaritons (SPPs) is theoretically studied with appropriately designed metasurfaces. By controlling both the orientation angle and spatial position of nano aperture array on an ultrathin gold film, the field distributions of the surface waves can be engineered to contain both spin dependent and independent OAM components. Simultaneous control over the geometric phase and optical path difference induced phase (dynamic phase) provides extra degrees of freedom for manipulating OAM of SPPs. We show that arbitrary combination of OAM numbers can be realized for the SPPs excited by incident light of different circular polarizations. The results provide powerful control over the OAM of SPPs, which will have potential applications on optical trapping, imaging, communications and quantum information processing.

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Section: Simulation and Discussionmentioning

confidence: 99%

Controlling the plasmonic orbital angular momentum by combining the geometric and dynamic phases

et al. 2017

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“…The strategy presented here is general, and we anticipate that its use may be extended to other BCPs with non-lamellar morphologies, and even to other nanomaterials that self-assemble in ensembles to create a variety of non-canonical patterns. Initial applications of this strategy are likely to be most relevant to the patterning needs of the semiconductor industry, but the large variety of customizable, semi-periodic nanopatterns available through this technique may amplify the usefulness of DSA in burgeoning technological applications like the fabrication of plasmonic or photonic devices 37,38 .…”

Section: Discussionmentioning

confidence: 99%

Enabling complex nanoscale pattern customization using directed self-assembly

et al. 2014

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Block copolymer directed self-assembly is an attractive method to fabricate highly uniform nanoscale features for various technological applications, but the dense periodicity of block copolymer features limits the complexity of the resulting patterns and their potential utility. Therefore, customizability of nanoscale patterns has been a long-standing goal for using directed self-assembly in device fabrication. Here we show that a hybrid organic/inorganic chemical pattern serves as a guiding pattern for self-assembly as well as a self-aligned mask for pattern customization through cotransfer of aligned block copolymer features and an inorganic prepattern. As informed by a phenomenological model, deliberate process engineering is implemented to maintain global alignment of block copolymer features over arbitrarily shaped, 'masking' features incorporated into the chemical patterns. These hybrid chemical patterns with embedded customization information enable deterministic, complex two-dimensional nanoscale pattern customization through directed self-assembly.

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“…The resolution of the plasmonic demultiplexer is 12 nm. Plasmonic demultiplexers with other nanostructures, such as nonperiodic nanoslits [82], subwavelength metal grooves [83] and an array of closely packed antennas [84], have also been demonstrated.…”

Section: D Spp In-plane Manipulationmentioning

confidence: 99%

Light manipulation with encoded plasmonic nanostructures

2014

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-Plasmonics, which allows for manipulation of light field beyond the fundamental diffraction limit, has recently attracted tremendous research efforts. The propagating surface plasmon polaritons (SPPs) confined on a metal-dielectric interface provide an ideal two-dimensional (2D) platform to develop subwavelength optical circuits for on-chip information processing and communication. The surface plasmon resonance of rationally designed metallic nanostructures, on the other hand, enables pronounced phase and polarization modulation for light beams travelling in three-dimensional (3D) free space. Flexible 2D and free-space propagating light manipulation can be achieved by encoding plasmonic nanostructures on a 2D surface, promising the design, fabrication and integration of the nextgeneration optical architectures with substantially reduced footprint. It is envisioned that the encoded plasmonic nanostructures can significantly expand available toolboxes for novel light manipulation. In this review, we presents the fundamentals, recent developments and future perspectives in this emerging field, aiming to open up new avenues to developing revolutionary photonic devices.

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Multiple-Wavelength Focusing of Surface Plasmons with a Nonperiodic Nanoslit Coupler

Cited by 138 publications

References 26 publications

Controlling the plasmonic orbital angular momentum by combining the geometric and dynamic phases

Controlling the plasmonic orbital angular momentum by combining the geometric and dynamic phases

Enabling complex nanoscale pattern customization using directed self-assembly

Light manipulation with encoded plasmonic nanostructures

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