Search Results - "Koppens, Frank H.L."
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Fast and Sensitive Terahertz Detection Using an Antenna-Integrated Graphene pn Junction
Published in Nano letters (08-05-2019)“…Although the detection of light at terahertz (THz) frequencies is important for a large range of applications, current detectors typically have several…”
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Grating-Graphene Metamaterial as a Platform for Terahertz Nonlinear Photonics
Published in ACS nano (26-01-2021)“…Nonlinear optics is an increasingly important field for scientific and technological applications, owing to its relevance and potential for optical and…”
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Highly confined low-loss plasmons in graphene–boron nitride heterostructures
Published in Nature materials (01-04-2015)“…Graphene plasmons were predicted to possess simultaneous ultrastrong field confinement and very low damping, enabling new classes of devices for…”
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Thermoelectric detection and imaging of propagating graphene plasmons
Published in Nature materials (01-02-2017)“…A device is presented that can detect mid-infrared plasmons in graphene encapsulated by hexagonal boron nitride via the thermoelectric effect; the natural…”
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Ultrafast electronic readout of diamond nitrogen–vacancy centres coupled to graphene
Published in Nature nanotechnology (01-02-2015)“…Excitation transfer between nitrogen–vacancy centres and graphene can be used to detect the spin of the electron in the nitrogen–vacancy centre through…”
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Optical nano-imaging of gate-tunable graphene plasmons
Published in Nature (London) (05-07-2012)“…Propagating optical plasmons — collective electron excitations coupled to photons — are launched in graphene and studied with near-field optical microscopy,…”
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Untying the insulating and superconducting orders in magic-angle graphene
Published in Nature (London) (16-07-2020)“…The coexistence of superconducting and correlated insulating states in magic-angle twisted bilayer graphene 1 – 11 prompts fascinating questions about their…”
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Graphene and two-dimensional materials for silicon technology
Published in Nature (London) (01-09-2019)“…The development of silicon semiconductor technology has produced breakthroughs in electronics—from the microprocessor in the late 1960s to early 1970s, to…”
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Complete optical absorption in periodically patterned graphene
Published in Physical review letters (27-01-2012)“…We demonstrate that 100% light absorption can take place in a single patterned sheet of doped graphene. General analysis shows that a planar array of small…”
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Integrating an electrically active colloidal quantum dot photodiode with a graphene phototransistor
Published in Nature communications (17-06-2016)“…The realization of low-cost photodetectors with high sensitivity, high quantum efficiency, high gain and fast photoresponse in the visible and short-wave…”
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Tuning quantum nonlocal effects in graphene plasmonics
Published in Science (American Association for the Advancement of Science) (14-07-2017)“…The response of electron systems to electrodynamic fields that change rapidly in space is endowed by unique features, including an exquisite spatial…”
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Probing the ultimate plasmon confinement limits with a Van der Waals heterostructure
Published in Science (American Association for the Advancement of Science) (20-04-2018)“…Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials The…”
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Tunable and giant valley-selective Hall effect in gapped bilayer graphene
Published in Science (American Association for the Advancement of Science) (25-03-2022)“…Berry curvature is analogous to magnetic field but in momentum space and is commonly present in materials with nontrivial quantum geometry. It endows Bloch…”
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Direct observation of ultraslow hyperbolic polariton propagation with negative phase velocity
Published in Nature photonics (01-10-2015)“…Time-domain interferometry and near-field scanning microscopy are used to investigate infrared phonon polaritons exhibiting hyperbolic dispersion. Negative…”
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Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes
Published in Science (American Association for the Advancement of Science) (12-06-2020)“…Acoustic graphene plasmons are highly confined electromagnetic modes carrying large momentum and low loss in the mid-infrared and terahertz spectra. However,…”
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The Rise of Twist-Optics
Published in Nano letters (14-10-2020)“…Two-dimensional materials stacked with a relative twist angle have been the focus point of tremendous interest in the condensed matter community. In the last…”
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Spatiotemporal imaging of 2D polariton wave packet dynamics using free electrons
Published in Science (American Association for the Advancement of Science) (11-06-2021)“…Two-dimensional (2D) materials can confine light to volumes much shorter than the wavelength, and, together, the long propagation lengths make them attractive…”
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18
Interface Engineering in Hybrid Quantum Dot–2D Phototransistors
Published in ACS photonics (20-07-2016)“…The hybridization of two-dimensional transition metal dichalcogenides (TMDCs) with colloidal quantum dots (QDs) has been demonstrated to be an ideal platform…”
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Graphene Plasmonics: A Platform for Strong Light–Matter Interactions
Published in Nano letters (10-08-2011)“…Graphene plasmons provide a suitable alternative to noble-metal plasmons because they exhibit much tighter confinement and relatively long propagation…”
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High-Mobility, Wet-Transferred Graphene Grown by Chemical Vapor Deposition
Published in ACS nano (27-08-2019)“…We report high room-temperature mobility in single-layer graphene grown by chemical vapor deposition (CVD) after wet transfer on SiO2 and hexagonal boron…”
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