Now showing items 1-12 of 13

    • Thermoelectric detection and imaging of 1 propagating graphene plasmons 

      Lundeberg, Mark B.; Gao, Yuanda; Woessner, Achim; Tan, Cheng; Alonso-González, Pablo; Watanabe, Kenji; Taniguchi, Takashi; Hone, James; Hillenbrand, Rainer; Koppens, Koppens (Nature, 2016-09-19)
      Article
      Open Access
      Controlling, detecting and generating propagating plasmons by all-electrical means is at the heart of on-chip nano-optical processing1, 2, 3. Graphene carries long-lived plasmons that are extremely confined and controllable ...
    • Extraordinary linear dynamic range in laser-defined functionalized graphene photodetectors 

      Sanctis, Adolfo De; Jones, Gareth F.; Wehenkel, Dominique J.; Bezares, Francisco; Koppens, Frank H. L.; Craciun, Monica F.; Russo, Saverio (Science, 2017-05-26)
      Article
      Open Access
      Graphene-based photodetectors have demonstrated mechanical flexibility, large operating bandwidth, and broadband spectral response. However, their linear dynamic range (LDR) is limited by graphene’s intrinsic hot-carrier ...
    • Real-space mapping of tailored sheet and edge plasmons in graphene nanoresonators 

      Nikitin, A. Y.; Alonso-González, P.; Vélez, S.; Mastel, S.; Centeno, A.; Pesquera, A.; Zurutuza, A.; Casanova, F.; Hueso, L. E.; Koppens, F. H. L.; Hillenbrand, R. (2016-03-21)
      Article
      Open Access
      Plasmons in graphene nanoresonators have many potential applications in photonics and optoelectronics, including room-temperature infrared and terahertz photodetectors, sensors, reflect arrays or modulators1, 2, 3, 4, 5, ...
    • High Quality Factor Mechanical Resonators Based on WSe2 Monolayers 

      Morell, Nicolas; Reserbat-Plantey, Antoine; Tsioutsios, Ioannis; Schädler, Kevin Gerd; Dubin, François; Koppens, Frank H. L.; Bachtold, Adrian (ACS, 2016-07-26)
      Article
      Open Access
      Suspended monolayer transition metal dichalcogenides (TMD) are membranes that combine ultralow mass and exceptional optical properties, making them intriguing materials for opto-mechanical applications. However, the low ...
    • Direct observation of ultraslow hyperbolic polariton propagation with negative phase velocity 

      Yoxall, Edward; Schnell, Martin; Nikitin, Alexey Y.; Txoperena, Oihana; Woessner, Achim; Lundeberg, Mark B.; Casanova, Félix; Hueso, Luis E.; Koppens, Frank H. L.; Hillenbrand, Rainer (Nature Publishing Group, 2015-09-14)
      Article
      Restricted access - publisher's policy
      Polaritons with hyperbolic dispersion are key to many emerging photonic technologies, including subdiffraction imaging, sensing and spontaneous emission engineering1, 2, 3, 4, 5, 6, 7, 8. Fundamental to their effective ...
    • Thermodynamic picture of ultrafast charge transport in graphene 

      Mics, Zoltan; Tielrooij, Klaas-Jan; Parvez, Khaled; Jensen, Søren A.; Ivanov, Ivan; Feng, Xinliang; Müllen, Klaus; Bonn, Mischa; Turchinovich, Dmitry (Nature Publishing Group, 2015-07-16)
      Article
      Open Access
      The outstanding charge transport properties of graphene enable numerous electronic applications of this remarkable material, many of which are expected to operate at ultrahigh speeds. In the regime of ultrafast, sub-picosecond ...
    • Electrical control of optical emitter relaxation pathways enabled by graphene 

      Tielrooij, K. J.; Orona, L.; Ferrier, A.; Badioli, M.; Navickaite, G.; Coop, S.; Nanot, S.; Kalinic, B.; Cesca, T.; Gaudreau, L.; Ma, Q.; Centeno, A.; Pesquera, A.; Zurutuza, A.; Riedmatten, H. de; Goldner, P.; García de Abajo, Francisco Javier; Jarillo-Herrero, P.; Koppens, Frank H. L. (Nature Publishing Group, 2015-01-19)
      Article
      Open Access
      Controlling the energy flow processes and the associated energy relaxation rates of a light emitter is of fundamental interest and has many applications in the fields of quantum optics, photovoltaics, photodetection, ...
    • Ultrafast electronic readout of diamond nitrogen–vacancy centres coupled to graphene 

      Brenneis, Andreas; Gaudreau, Louis; Seifert, Max; Karl, Helmut; Brandt, Martin S.; Huebl, Hans; Garrido, Jose A.; Koppens, Frank H. L.; Holleitner, Alexander W. (Nature Publishing Group, 2014-12-01)
      Article
      Open Access
      Non-radiative transfer processes are often regarded as loss channels for an optical emitter1 because they are inherently difficult to access experimentally. Recently, it has been shown that emitters, such as fluorophores ...
    • Highly confined low-loss plasmons in graphene–boron nitride heterostructures 

      Woessner, Achim; Lundeberg, Mark B.; Gao, Yuanda; Principi, Alessandro; Alonso-González, Pablo; Carrega, Matteo; Watanabe, Kenji; Taniguchi, Takashi; Vignale, Giovanni; Polini, Marco; Hone, James; Hillenbrand, Rainer; Koppens, Frank H.L. (Nature Publishing Group, 2014-12-22)
      Article
      Open Access
      Graphene plasmons were predicted to possess simultaneous ultrastrong field confinement and very low damping, enabling new classes of devices for deep-subwavelength metamaterials, single-photon nonlinearities, extraordinarily ...
    • Hot-carrier photocurrent effects at graphene–metal interfaces 

      Tielrooij, K. J.; Massicotte, M.; Piatkowski, L.; Woessner, Achim; Ma, Q.; Jarillo-Herrero, P.; Hulst, N. F. van; Koppens, F. H. L. (IOP, 2015-03-02)
      Article
      Open Access
      Photoexcitation of graphene leads to an interesting sequence of phenomena, some of which can be exploited in optoelectronic devices based on graphene. In particular, the efficient and ultrafast generation of an electron ...
    • Generation of photovoltage in graphene on a femtosecond timescale through efficient carrier heating 

      Tielrooij, K. J.; Piatkowski, L.; Massicotte, M.; Woessner, Achim; Ma, Q.; Lee, Y.; Myhro, K. S.; Lau, C. N.; Jarillo-Herrero, P.; Hulst, N. F. van; Koppens, F. H. L. (Nature, 2015-04-13)
      Article
      Open Access
      Graphene is a promising material for ultrafast and broadband photodetection. Earlier studies have addressed the general operation of graphene-based photothermoelectric devices and the switching speed, which is limited by ...
    • Ultrafast electronic readout of diamond nitrogen-vacancy centres coupled to graphene 

      Brenneis, Andreas; Gaudreau, Louis; Seifert, Max; Karl, Helmut; Brandt, Martin S.; Huebl, Hans; Garrido, Jose A; Koppens, Frank H. L.; Holleitner, Alexander W. (Nature Publishin group, 2014-12-01)
      Article
      Open Access
      Non-radiative transfer processes are often regarded as loss channels for an optical emitter1 because they are inherently difficult to access experimentally. Recently, it has been shown that emitters, such as fluorophores ...