Zobrazeno 1 - 10
of 366
pro vyhledávání: '"Gonçalves, P. A. D."'
Autor:
Zhou, Junze, Gonçalves, P. A. D., Riminucci, Fabrizio, Dhuey, Scott, Barnard, Edward, Schwartzberg, Adam, de Abajo, F. Javier García, Weber-Bargioni, Alexander
Probing strongly coupled quasiparticle excitations at their intrinsic length scales offers unique insights into their properties and facilitates the design of devices with novel functionalities. In this work, we investigate the formation and emission
Externí odkaz:
http://arxiv.org/abs/2404.05161
The interaction between free electrons and nanoscale optical fields has emerged as a unique platform to investigate ultrafast processes in matter and explore fundamental quantum phenomena. In particular, optically modulated electrons are employed in
Externí odkaz:
http://arxiv.org/abs/2403.09896
Publikováno v:
Nanoscale 15, 11731-12126 (2023)
Plasmons can be excited during photoemission and produce spectral photoelectron features that yield information on the nanoscale optical response of the probed materials. However, these so-called plasmon satellites have so far been observed only for
Externí odkaz:
http://arxiv.org/abs/2305.13203
Publikováno v:
Nano Letters 23, 4242-4249 (2023)
A rigorous account of quantum nonlocal effects is paramount for understanding the optical response of metal nanostructures and for designing plasmonic devices at the nanoscale. Here, we present a scheme for retrieving the quantum surface response of
Externí odkaz:
http://arxiv.org/abs/2301.10040
Autor:
Tserkezis, Christos, Wolff, Christian, Shuklin, Fedor A., Todisco, Francesco, Eriksen, Mikkel H., Gonçalves, P. A. D., Mortensen, N. Asger
Publikováno v:
Phys. Rev. A 107, 043707 (2023)
We propose an efficient approach for actively controlling the Rabi oscillations in emitter-cavity hybrids based on the presence of an element with optical gain. Inspired by recent developments in parity-time ($\mathcal{PT}$)-symmetry photonics, we sh
Externí odkaz:
http://arxiv.org/abs/2209.09741
Publikováno v:
Nature Communications 13, 5175 (2022)
The modification of electronic band structures and the subsequent tuning of electrical, optical, and thermal material properties is a central theme in the engineering and fundamental understanding of solid-state systems. In this scenario, atomically
Externí odkaz:
http://arxiv.org/abs/2201.09344
Autor:
Boroviks, Sergejs, Lin, Zhan-Hong, Zenin, Vladimir A., Ziegler, Mario, Dellith, Andrea, Gonçalves, P. A. D., Wolff, Christian, Bozhevolnyi, Sergey I., Huang, Jer-Shing, Mortensen, N. Asger
Publikováno v:
Nat. Commun. 13, 3105 (2022)
Historically, the field of plasmonics has been relying on the framework of classical electrodynamics, with the local-response approximation of material response being applied even when dealing with nanoscale metallic structures. However, when approac
Externí odkaz:
http://arxiv.org/abs/2111.07561
Autor:
Rasmussen, T. P., Gonçalves, P. A. D., Xiao, Sanshui, Hofferberth, Sebastian, Mortensen, N. Asger, Cox, Joel D.
Publikováno v:
ACS Photonics 8, 1840 (2021)
The suite of highly confined polaritons supported by two-dimensional (2D) materials constitutes a versatile platform for nano-optics, offering the means to channel light on deep-subwavelength scales. Graphene, in particular, has attracted considerabl
Externí odkaz:
http://arxiv.org/abs/2108.04808
Autor:
Reserbat-Plantey, Antoine, Epstein, Itai, Torre, Iacopo, Costa, Antonio T., Gonçalves, P. A. D., Mortensen, N. Asger, Polini, Marco, Song, Justin C. W., Peres, Nuno M. R., Koppens, Frank H. L.
Publikováno v:
ACS Photonics 2021, 8, 85
The field of 2D materials-based nanophotonics has been growing at a rapid pace, triggered by the ability to design nanophotonic systems with in situ control, unprecedented degrees of freedom, and to build material heterostructures from bottom up with
Externí odkaz:
http://arxiv.org/abs/2106.11736
Autor:
Mortensen, N. Asger, Gonçalves, P. A. D., Shuklin, Fedor A., Cox, Joel D., Tserkezis, Christos, Ichikawa, Masakazu, Wolff, Christian
Publikováno v:
Nanophotonics 10, 3647 (2021)
Surface-response functions are one of the most promising routes for bridging the gap between fully quantum-mechanical calculations and phenomenological models in quantum nanoplasmonics. Within all the currently available recipes for obtaining such re
Externí odkaz:
http://arxiv.org/abs/2103.00162