399 results found
Androvitsaneas P, Young AB, Lennon JM, et al., 2017, Efficient deterministic giant photon phase shift from a single charged quantum dot
© OSA 2017. We demonstrate a deterministic shift in phase of an input single photon by a negatively charged quantum dot in a low Q-factor, high output efficiency micropillar cavity, with values up to 2π/3.
Black NCG, Liu CG, Pearce R, et al., 2017, Graphene gas sensing using a non-contact microwave method, NANOTECHNOLOGY, Vol: 28, ISSN: 0957-4484
Braic L, Vasilantonakis N, Mihai A, et al., 2017, Titanium Oxynitride Thin Films with Tunable Double Epsilon-Near-Zero Behavior for Nanophotonic Applications, ACS APPLIED MATERIALS & INTERFACES, Vol: 9, Pages: 29857-29862, ISSN: 1944-8244
Cambiasso J, Grinblat G, Li Y, et al., 2017, Bridging the Gap between Dielectric Nanophotonics and the Visible Regime with Effectively Lossless Gallium Phosphide Antennas, NANO LETTERS, Vol: 17, Pages: 1219-1225, ISSN: 1530-6984
Canet-Ferrer J, Albella P, Ribera A, et al., 2017, Hybrid magnetite-gold nanoparticles as bifunctional magnetic-plasmonic systems: three representative cases, NANOSCALE HORIZONS, Vol: 2, Pages: 205-216, ISSN: 2055-6756
Cortes, Xie W, Cambiasso, et al., 2017, Plasmonic hot electron transport drives nano-localized chemistry, Nature Communications, ISSN: 2041-1723
Nanoscale localization of electromagnetic fields near metallic nanostructures underpins the fundamentals and applications of plasmonics. The unavoidable energy loss from plasmon decay, initially seen as a detriment, has now expanded the scope of plasmonic applications to exploit the generated hot carriers. However, quantitative understanding of the spatial localization of these hot carriers, akin to electromagnetic near-field maps, has been elusive. Here we spatially map hot-electron-driven reduction chemistry with 15 nanometre resolution as a function of time and electromagnetic field polarization for different plasmonic nanostructures. We combine experiments employing a six-electron photo-recycling process that modify the terminal group of a self-assembled monolayer on plasmonic silver nanoantennas, with theoretical predictions from first-principles calculations of non-equilibrium hot-carrier transport in these systems. The resulting localization of reactive regions, determined by hot carrier transport from high-field regions, paves the way for improving efficiency in hot-carrier extraction science and nanoscale regio-selective surface chemistry.
Cortes E, Xie W, Cambiasso J, et al., 2017, Plasmonic hot electron transport drives nano-localized chemistry, NATURE COMMUNICATIONS, Vol: 8, ISSN: 2041-1723
Crick CR, Albella P, Kim H-J, et al., 2017, Low-Noise Plasmonic Nanopore Biosensors for Single Molecule Detection at Elevated Temperatures, ACS PHOTONICS, Vol: 4, Pages: 2835-2842, ISSN: 2330-4022
Dieleman F, Tame MS, Sonnefraud Y, et al., 2017, Experimental Verification of Entanglement Generated in a Plasmonic System., Nano Lett
A core process in many quantum tasks is the generation of entanglement. It is being actively studied in a variety of physical settings-from simple bipartite systems to complex multipartite systems. In this work we experimentally study the generation of bipartite entanglement in a nanophotonic system. Entanglement is generated via the quantum interference of two surface plasmon polaritons in a beamsplitter structure, i.e., utilizing the Hong-Ou-Mandel (HOM) effect, and its presence is verified using quantum state tomography. The amount of entanglement is quantified by the concurrence and we find values of up to 0.77 ± 0.04. Verifying entanglement in the output state from HOM interference is a nontrivial task and cannot be inferred from the visibility alone. The techniques we use to verify entanglement could be applied to other types of photonic system and therefore may be useful for the characterization of a range of different nanophotonic quantum devices.
Gargiulo J, Brick T, Violi IL, et al., 2017, Understanding and Reducing Photothermal Forces for the Fabrication of Au Nanoparticle Dimers by Optical Printing, NANO LETTERS, Vol: 17, Pages: 5747-5755, ISSN: 1530-6984
Grinblat G, Li Y, Nielsen MP, et al., 2017, Efficient Third Harmonic Generation and Nonlinear Subwavelength Imaging at a Higher-Order Anapole Mode in a Single Germanium Nanodisk, ACS NANO, Vol: 11, Pages: 953-960, ISSN: 1936-0851
Grinblat G, Li Y, Nielsen MP, et al., 2017, Degenerate Four-Wave Mixing in a Multiresonant Germanium Nanodisk, ACS PHOTONICS, Vol: 4, Pages: 2144-2149, ISSN: 2330-4022
Gubbin CR, Maier SA, De Liberato S, 2017, Theoretical investigation of phonon polaritons in SiC micropillar resonators, PHYSICAL REVIEW B, Vol: 95, ISSN: 2469-9950
Huidobro PA, Maier SA, Pendry JB, 2017, Tunable plasmonic metasurface for perfect absorption, EPJ APPLIED METAMATERIALS, Vol: 4, ISSN: 2272-2394
Lauri A, Velleman L, Xiao X, et al., 2017, 3D Confocal Raman Tomography to Probe Field Enhancements inside Supercluster Metamaterials, ACS PHOTONICS, Vol: 4, Pages: 2070-2077, ISSN: 2330-4022
Lerario G, Fieramosca A, Barachati F, et al., 2017, Room-temperature superfluidity in a polariton condensate, NATURE PHYSICS, Vol: 13, Pages: 837-+, ISSN: 1745-2473
Li K, Fitzgerald JM, Xiao X, et al., 2017, Graphene Plasmon Cavities Made with Silicon Carbide, ACS OMEGA, Vol: 2, Pages: 3640-3646, ISSN: 2470-1343
Mack DL, Cortes E, Giannini V, et al., 2017, Decoupling absorption and emission processes in super-resolution localization of emitters in a plasmonic hotspot, NATURE COMMUNICATIONS, Vol: 8, ISSN: 2041-1723
Mavrokefalos CK, Hasan M, Khunsin W, et al., 2017, Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation, ELECTROCHIMICA ACTA, Vol: 243, Pages: 310-319, ISSN: 0013-4686
Mellor A, Hylton NP, Maier SA, et al., 2017, Interstitial light-trapping design for multi-junction solar cells, SOLAR ENERGY MATERIALS AND SOLAR CELLS, Vol: 159, Pages: 212-218, ISSN: 0927-0248
Ngoc BN, Maier SA, Hong M, et al., 2017, Recovering parity-time symmetry in highly dispersive coupled optical waveguides (vol 18, 125012, 2016), NEW JOURNAL OF PHYSICS, Vol: 19, ISSN: 1367-2630
Park SG, Mun CW, Xiao X, et al., 2017, Surface Energy-Controlled SERS Substrates for Molecular Concentration at Plasmonic Nanogaps, Advanced Functional Materials, Vol: 27, ISSN: 1616-301X
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Positioning probe molecules at electromagnetic hot spots with nanometer precision is required to achieve highly sensitive and reproducible surface-enhanced Raman spectroscopy (SERS) analysis. In this article, molecular positioning at plasmonic nanogaps is reported using a high aspect ratio (HAR) plasmonic nanopillar array with a controlled surface energy. A large-area HAR plasmonic nanopillar array is generated using a nanolithography-free simple process involving Ar plasma treatment applied to a smooth polymer surface and the subsequent evaporation of metal onto the polymer nanopillars. The surface energy can be precisely controlled through the selective removal of an adsorbed self-assembled monolayer of low surface-energy molecules prepared on the plasmonic nanopillars. This process can be used to tune the surface energy and provide a superhydrophobic surface with a water contact angle of 165.8° on the one hand or a hydrophilic surface with a water contact angle of 40.0° on the other. The highly tunable surface wettability is employed to systematically investigate the effects of the surface energy on the capillary-force-induced clustering among the HAR plasmonic nanopillars as well as on molecular concentration at the collapsed nanogaps present at the tops of the clustered nanopillars.
Roth DJ, Krasavin AV, Wade A, et al., 2017, Spontaneous Emission inside a Hyperbolic Metamaterial Waveguide, ACS PHOTONICS, Vol: 4, Pages: 2513-2521, ISSN: 2330-4022
Shibanuma T, Grinblat G, Albella P, et al., 2017, Efficient Third Harmonic Generation from Metal-Dielectric Hybrid Nanoantennas, NANO LETTERS, Vol: 17, Pages: 2647-2651, ISSN: 1530-6984
Shibanuma T, Matsui T, Roschuk T, et al., 2017, Experimental Demonstration of Tunable Directional Scattering of Visible Light from All-Dielectric Asymmetric Dimers, ACS PHOTONICS, Vol: 4, Pages: 489-494, ISSN: 2330-4022
Wang L, Wang Z, Wang H-Y, et al., 2017, Slow cooling and efficient extraction of C-exciton hot carriers in MoS2 monolayer, NATURE COMMUNICATIONS, Vol: 8, ISSN: 2041-1723
Wells MP, Zou B, Doiron BG, et al., 2017, Tunable, Low Optical Loss Strontium Molybdate Thin Films for Plasmonic Applications, Advanced Optical Materials
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Strontium molybdate (SrMoO 3 ) thin films are grown epitaxially on strontium titanate (SrTiO 3 ), magnesium oxide (MgO), and lanthanum aluminate (LaAlO 3 ) substrates by pulsed laser deposition and possess electrical resistivity as low as 100 μΩ cm at room temperature. SrMoO 3 is shown to have optical losses, characterized by the product of the Drude broadening, Γ D , and the square of the plasma frequency, ω pu 2 , significantly lower than TiN, though generally higher than Au. Also, it is demonstrated that there is a zero-crossover wavelength of the real part of the dielectric permittivity, which is between 600 and 950 nm (2.05 and 1.31 eV), as measured by spectroscopic ellipsometry. Moreover, the epsilon near zero (ENZ) wavelength can be controlled by engineering the residual strain in the films, which arises from a strain dependence of the charge carrier concentration, as confirmed by density of states calculations. The relatively broad tunability of ENZ behavior observed in SrMoO 3 demonstrates its potential suitability for transformation optics along with plasmonic applications in the visible to near infrared spectral range.
Yu H, Sidiropoulos TPH, Liu W, et al., 2017, Influence of Silver Film Quality on the Threshold of Plasmonic Nanowire Lasers, ADVANCED OPTICAL MATERIALS, Vol: 5, ISSN: 2195-1071
Zayats AV, Maier S, 2017, Hot-Electron Effects in Plasmonics and Plasmonic Materials, ADVANCED OPTICAL MATERIALS, Vol: 5, ISSN: 2195-1071
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