Publications
799 results found
Plidschun M, Ren H, Kim J, et al., 2021, Ultra-high numerical aperture meta-fiber for flexible optical trapping, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Buchner R, Weber T, Maier SA, et al., 2021, Tailoring the Response of Gold Nanoantennas in Optical Near-Field Measurements: Orientation and Field Size, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Kuehne J, Weber T, Kuehner L, et al., 2021, Fabrication tolerance impact on BIC metasurface resonances, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
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- Citations: 1
Tilmann B, Grinblat G, Li Y, et al., 2021, Gallium Phopshide Nanostructures on Transparent Substrates for Nonlinear and Ultrafast Nanophotonics, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Huettenhofer L, Tittl A, Maier SA, 2021, Anapole-Assisted Absorption Engineering in Arrays of Coupled Amorphous GaP Nanodisks, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Kuhner L, Ren H, Berte R, et al., 2021, Bound states in the continuum in symmetry broken resonator rings, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Glass D, Cortes E, Quesada-Cabrera R, et al., 2021, Generating, probing and utilising photo-induced surface oxygen vacancies for trace molecular detection, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Ezendam S, Gargiulo J, Sousa-Castillo A, et al., 2021, Super-Resolution Mapping of Light-Driven Reactions on Metal Nanostructures, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Liu C, Mao P, Niu Y, et al., 2021, Material-Insensitive Optical Response From Disordered Plasmonic Nanostructures, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Noor A, Damodaran AR, Lee IH, et al., 2021, Plasmonic Nanopatch Antennas as a Doubly Resonant Platform for Mode-Matched Second-Harmonic Generation, 15th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), Publisher: IEEE, Pages: X305-X307
Tirole R, Attavar T, Dranczewski J, et al., 2021, Time Diffraction in an Epsilon-Near-Zero Metasurface, Conference on Lasers and Electro-Optics (CLEO), Publisher: IEEE, ISSN: 2160-9020
Jang B, Gargiulo J, Kim J, et al., 2021, Fiber-connected 3D Printed Hollow-core Light Cage for Gas Detection, Conference on Lasers and Electro-Optics (CLEO), Publisher: IEEE, ISSN: 2160-9020
Kim J, Jang B, Gargiulo J, et al., 2021, The Light Cage - Integrated on-Chip Spectroscopy Using a Nano-Printed Hollow Core Waveguide, Conference on Lasers and Electro-Optics (CLEO), Publisher: IEEE, ISSN: 2160-9020
Sousa-Castillo A, Marino-Lopez A, Negrin-Montecelo Y, et al., 2021, Enhancing Photocatalytic Efficiency through Plasmonic Nanoparticles with Au-TiO<sub>2</sub> based Nanostructures, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Gennaro SD, Roschuk T, Maier SA, et al., 2021, Critical Coupling of a Single Metallic Nanoantenna under Focused Illumination, Conference on Lasers and Electro-Optics (CLEO), Publisher: IEEE, ISSN: 2160-9020
Kuehner L, Ren H, Berte R, et al., 2021, Radial bound states in the continuum, Conference on Lasers and Electro-Optics (CLEO), Publisher: IEEE, ISSN: 2160-9020
Sortino L, Zotev PG, Sapienza R, et al., 2021, Enhanced light-matter interaction in atomically thin semiconductors and 2D single photon emitters coupled to dielectric nano-antennas, Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Publisher: IEEE
Lee JB, Walker H, Li Y, et al., 2020, Template dissolution interfacial patterning of single colloids for nanoelectrochemistry and nanosensing, ACS Nano, Vol: 14, Pages: 17693-17703, ISSN: 1936-0851
Deterministic positioning and assembly of colloidal nanoparticles (NPs) onto substrates is a core requirement and a promising alternative to top-down lithography to create functional nanostructures and nanodevices with intriguing optical, electrical, and catalytic features. Capillary-assisted particle assembly (CAPA) has emerged as an attractive technique to this end, as it allows controlled and selective assembly of a wide variety of NPs onto predefined topographical templates using capillary forces. One critical issue with CAPA, however, lies in its final printing step, where high printing yields are possible only with the use of an adhesive polymer film. To address this problem, we have developed a template dissolution interfacial patterning (TDIP) technique to assemble and print single colloidal AuNP arrays onto various dielectric and conductive substrates in the absence of any adhesion layer, with printing yields higher than 98%. The TDIP approach grants direct access to the interface between the AuNP and the target surface, enabling the use of colloidal AuNPs as building blocks for practical applications. The versatile applicability of TDIP is demonstrated by the creation of direct electrical junctions for electro- and photoelectrochemistry and nanoparticle-on-mirror geometries for single-particle molecular sensing.
Noor A, Damodaran AR, Lee I-H, et al., 2020, Mode-Matching Enhancement of Second-Harmonic Generation with Plasmonic Nanopatch Antennas, ACS PHOTONICS, Vol: 7, Pages: 5333-5340, ISSN: 2330-4022
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- Citations: 21
Li K, Fitzgerald JM, Xiao X, et al., 2020, Graphene Plasmon Cavities Made with Silicon Carbide (vol 2, pg 3640, 2017), ACS OMEGA, Vol: 5, Pages: 30746-30746, ISSN: 2470-1343
Tilmann B, Grinblat G, Berte R, et al., 2020, Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics, NANOSCALE HORIZONS, Vol: 5, Pages: 1500-1508, ISSN: 2055-6756
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- Citations: 15
Ren H, Fang X, Jang J, et al., 2020, Complex-amplitude metasurface-based orbital angular momentum holography in momentum space, Nature Nanotechnology, Vol: 15, Pages: 948-955, ISSN: 1748-3387
Digital optical holograms can achieve nanometer-scale resolution thanks to recent advances in metasurface technologies. This has raised hopes for applications in data encryption, data storage, information processing and displays. However, the hologram bandwidth has remained too low for any practical use. To overcome this limitation, information can be stored in the orbital angular momentum (OAM) of light, as this degree of freedom has an unbounded set of orthogonal helical modes that could function as information channels. Thus far, OAM holography has been achieved using phase-only metasurfaces, which however are marred by channels crosstalk. As a result, multiplex information from only 4 channels has been demonstrated. Here we demonstrate an OAM holography technology that is capable of multiplexing up to 200 independent OAM channels. This is achieved by designing a complex-amplitude metasurface in momentum-space capable of complete and independent amplitude and phase manipulation. Information is then extracted by Fourier transform using different OAM modes of light, allowing lensless reconstruction and holographic videos being displayed. Our metasurface can be 3D printed in a polymer matrix on SiO2 for large-area fabrication.
Tanaka YY, Albella P, Rahmani M, et al., 2020, Plasmonic linear nanomotor using lateral optical forces, SCIENCE ADVANCES, Vol: 6, ISSN: 2375-2548
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- Citations: 34
Luo S, Mancini A, Berté R, et al., 2020, Fabrication of Size-Controlled Metallic Nanogaps down to the Sub 3-Nm Level
<jats:p>Metallic nanogaps are fundamental components of nanoscale photonic and electronic devices. However, the lack of reproducible high-yield fabrication methods with nanometric control over the gap-size has hindered practical applications. Here, we report a patterning technique based on molecular self-assembly and physical peeling that allows the gap-width to be tuned over the range 3 – 30 nm and enables the fabrication of massively parallel nanogap arrays containing hundreds of millions of ring-shaped nanogaps (RSNs). The method is used here to prepare molecular diodes across sub-3-nm metallic nanogaps and to fabricate visible-light-active plasmonic substrates based on large-area, gold-based RSN arrays. The substrates are applicable to a broad range of optical applications, and are used here as substrates for surface-enhanced Raman spectroscopy (SERS), providing high enhancement factors of up to 3e8 relative to similar, gap-free thin gold films.</jats:p>
Leng K, Wang L, Shao Y, et al., 2020, Electron tunneling at the molecularly thin 2D perovskite and graphene van der Waals interface, NATURE COMMUNICATIONS, Vol: 11, ISSN: 2041-1723
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- Citations: 32
Poblet M, Li Y, Cortes E, et al., 2020, Direct Detection of Optical Forces of Magnetic Nature in Dielectric Nanoantennas, NANO LETTERS, Vol: 20, Pages: 7627-7634, ISSN: 1530-6984
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- Citations: 8
Feng Y, Leiderer P, Zhao R, et al., 2020, Giant polarization anisotropic optical response from anodic aluminum oxide templates embedded with plasmonic metamaterials, OPTICS EXPRESS, Vol: 28, Pages: 29513-29528, ISSN: 1094-4087
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- Citations: 1
Proctor M, Xiao X, Craster RV, et al., 2020, Near- and far-field excitation of topological plasmonic metasurfaces, Photonics, Vol: 7, ISSN: 2304-6732
The breathing honeycomb lattice hosts a topologically non-trivial bulk phase due to the crystalline-symmetry of the system. Pseudospin-dependent edge states, which emerge at the interface between trivial and non-trivial regions, can be used for the directional propagation of energy. Using the plasmonic metasurface as an example system, we probe these states in the near- and far-field using a semi-analytical model. We provide the conditions under which directionality was observed and show that it is source position dependent. By probing with circularly-polarised magnetic dipoles out of the plane, we first characterise modes along the interface in terms of the enhancement of source emissions due to the metasurface. We then excite from the far-field with non-zero orbital angular momentum beams. The position-dependent directionality holds true for all classical wave systems with a breathing honeycomb lattice. Our results show that a metasurfac,e in combination with a chiral two-dimensional material, could be used to guide light effectively on the nanoscale.
Sapienza R, Morozov S, Vezzoli S, et al., 2020, Electrical control of single-photon emission in highly-charged individual colloidal quantum dots, Science Advances, Vol: 6, ISSN: 2375-2548
Electron transfer to an individual quantum dot promotes the formation of charged excitons with enhanced recombination pathways and reduced lifetimes. Excitons with only one or two extra charges have been observed and exploited for very efficient lasing or single–quantum dot light-emitting diodes. Here, by room-temperature time-resolved experiments on individual giant-shell CdSe/CdS quantum dots, we show the electrochemical formation of highly charged excitons containing more than 12 electrons and 1 hole. We report the control over intensity blinking, along with a deterministic manipulation of quantum dot photodynamics, with an observed 210-fold increase in the decay rate, accompanied by 12-fold decrease in the emission intensity, while preserving single-photon emission characteristics. These results pave the way for deterministic control over the charge state, and room-temperature decay rate engineering for colloidal quantum dot–based classical and quantum communication technologies.
Gomell L, Katnagallu S, Diack-Rasselio A, et al., 2020, Chemical segregation and precipitation at anti-phase boundaries in thermoelectric Heusler-Fe<sub>2</sub>VA1, SCRIPTA MATERIALIA, Vol: 186, Pages: 370-374, ISSN: 1359-6462
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- Citations: 8
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