Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Woessner, Achim"'
Autor:
Woessner, Achim, Gao, Yuanda, Torre, Iacopo, Lundeberg, Mark B., Tan, Cheng, Watanabe, Kenji, Taniguchi, Takashi, Hillenbrand, Rainer, Hone, James, Polini, Marco, Koppens, Frank H. L.
Publikováno v:
Nature Photonics 11, 421-424 (2017)
Modulating the amplitude and phase of light is at the heart of many applications such as wavefront shaping, transformation optics, phased arrays, modulators and sensors. Performing this task with high efficiency and small footprint is a formidable ch
Externí odkaz:
http://arxiv.org/abs/1705.10317
Autor:
Woessner, Achim, Parret, Romain, Davydovskaya, Diana, Gao, Yuanda, Wu, Jhih-Sheng, Lundeberg, Mark B., Nanot, Sébastien, Alonso-González, Pablo, Watanabe, Kenji, Taniguchi, Takashi, Hillenbrand, Rainer, Fogler, Michael M., Hone, James, Koppens, Frank H. L.
Publikováno v:
npj 2D Materials and Applications 1, 25 (2017)
Light properties in the mid-infrared can be controlled at a deep subwavelength scale using hyperbolic phonons-polaritons (HPPs) of hexagonal boron nitride (h-BN). While propagating as waveguided modes HPPs can concentrate the electric field in a chos
Externí odkaz:
http://arxiv.org/abs/1705.10318
Autor:
Lundeberg, Mark, Gao, Yuanda, Asgari, Reza, Tan, Cheng, Van Duppen, Ben, Autore, Marta, Alonso-Gonzalez, Pablo, Woessner, Achim, Watanabe, Kenji, Taniguchi, Takashi, Hillenbrand, Rainer, Hone, James, Polini, Marco, Koppens, Frank H. L.
Publikováno v:
Science Vol. 357, Issue 6347, pp. 187-191 (2017)
The response of an electron system to electromagnetic fields with sharp spatial variations is strongly dependent on quantum electronic properties, even in ambient conditions, but difficult to access experimentally. We use propagating graphene plasmon
Externí odkaz:
http://arxiv.org/abs/1704.05518
Autor:
Alonso-Gonzalez, Pablo, Nikitin, Alexey Y., Gao, Yuanda, Woessner, Achim, Lundeberg, Mark B., Principi, Alessandro, Forcellini, Nicolo, Yan, Wenjing, Velez, Saul, Huber, Andreas. J., Watanabe, Kenji, Taniguchi, Takashi, Hueso, Luis E., Polini, Marco, Hone, James, Koppens, Frank H. L., Hillenbrand, Rainer
Publikováno v:
Nature Nanotechnology 12, 31-35 (2017)
Terahertz (THz) fields are widely applied for sensing, communication and quality control. In future applications, they could be efficiently confined, enhanced and manipulated - well below the classical diffraction limit - through the excitation of gr
Externí odkaz:
http://arxiv.org/abs/1601.05753
Autor:
Badioli, Michela, Woessner, Achim, Tielrooij, Klaas-Jan, Nanot, Sébastien, Navickaite, Gabriele, Stauber, Tobias, de Abajo, F. Javier García, Koppens, Frank H. L.
Publikováno v:
Nano Letters 14 (11), 6374-6381 (2014)
The photoresponse of graphene at mid-infrared frequencies is of high technological interest and is governed by fundamentally different underlying physics than the photoresponse at visible frequencies, as the energy of the photons and substrate phonon
Externí odkaz:
http://arxiv.org/abs/1601.04531
Autor:
Lundeberg, Mark B., Gao, Yuanda, Woessner, Achim, Tan, Cheng, Alonso-González, Pablo, Watanabe, Kenji, Taniguchi, Takashi, Hone, James, Hillenbrand, Rainer, Koppens, Frank H. L.
Controlling, detecting and generating propagating plasmons by all-electrical means is at the heart of on-chip nano-optical processing. Graphene carries long-lived plasmons that are extremely confined and controllable by electrostatic fields, however
Externí odkaz:
http://arxiv.org/abs/1601.01977
Autor:
Woessner, Achim, Alonso-González, Pablo, Lundeberg, Mark B., Gao, Yuanda, Barrios-Vargas, Jose E., Navickaite, Gabriele, Ma, Qiong, Janner, Davide, Watanabe, Kenji, Cummings, Aron W., Taniguchi, Takashi, Pruneri, Valerio, Roche, Stephan, Jarillo-Herrero, Pablo, Hone, James, Hillenbrand, Rainer, Koppens, Frank H. L.
Publikováno v:
Nature Communications 7, 10783 (2016)
Opto-electronic devices utilizing graphene have already demonstrated unique capabilities, which are much more difficult to realize with conventional technologies. However, the requirements in terms of material quality and uniformity are very demandin
Externí odkaz:
http://arxiv.org/abs/1508.07864
Generation of photovoltage in graphene on a femtosecond time scale through efficient carrier heating
Autor:
Tielrooij, Klaas-Jan, Piatkowski, Lukasz, Massicotte, Mathieu, Woessner, Achim, Ma, Qiong, Lee, Yongjin, Myhro, Kevin Scott, Lau, Chun Ning, Jarillo-Herrero, Pablo, van Hulst, Niek F., Koppens, Frank H. L.
Publikováno v:
Nature Nanotechnology 10, 437-443 (2015)
Graphene is a promising material for ultrafast and broadband photodetection. Earlier studies addressed the general operation of graphene-based photo-thermoelectric devices, and the switching speed, which is limited by the charge carrier cooling time,
Externí odkaz:
http://arxiv.org/abs/1504.06487
Autor:
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.
Publikováno v:
Nature Materials 14, 421-425 (2015)
Graphene plasmons were predicted to possess ultra-strong field confinement and very low damping at the same time, enabling new classes of devices for deep subwavelength metamaterials, single-photon nonlinearities, extraordinarily strong light-matter
Externí odkaz:
http://arxiv.org/abs/1409.5674
Autor:
Principi, Alessandro, Carrega, Matteo, Lundeberg, Mark, Woessner, Achim, Koppens, Frank H. L., Vignale, Giovanni, Polini, Marco
Publikováno v:
Phys. Rev. B 90, 165408 (2014)
Graphene sheets encapsulated between hexagonal Boron Nitride (hBN) slabs display superb electronic properties due to very limited scattering from extrinsic disorder sources such as Coulomb impurities and corrugations. Such samples are therefore expec
Externí odkaz:
http://arxiv.org/abs/1408.1653