naa a22 4500 510817645 CHVBK 20180411083516.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9375-z doi (NATIONALLICENCE)springer-10.1007/s11468-012-9375-z Refractive-Index Sensing with Ultrathin Plasmonic Nanotubes [Elektronische Daten] [Søren Raza, Giuseppe Toscano, Antti-Pekka Jauho, N. Mortensen, Martijn Wubs] We study the refractive-index sensing properties of plasmonic nanotubes with a dielectric core and ultrathin metal shell. The few nanometer thin metal shell is described by both the usual Drude model and the nonlocal hydrodynamic model to investigate the effects of nonlocality. We derive an analytical expression for the extinction cross section and show how sensing of the refractive index of the surrounding medium and the figure of merit are affected by the shape and size of the nanotubes. Comparison with other localized surface plasmon resonance sensors reveals that the nanotube exhibits superior sensitivity and comparable figure of merit. Springer Science+Business Media, LLC, 2012 Refractive-index sensing nationallicence Nanoplasmonics nationallicence Hydrodynamic Drude model nationallicence Raza Søren Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut Toscano Giuseppe Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut Jauho Antti-Pekka Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut Mortensen N. Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut Wubs Martijn Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 193-199 1557-1955 8:2<193 2013 8 11468 https://doi.org/10.1007/s11468-012-9375-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9375-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Raza Søren Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut NATIONALLICENCE 700 1- Toscano Giuseppe Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut NATIONALLICENCE 700 1- Jauho Antti-Pekka Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut NATIONALLICENCE 700 1- Mortensen N. Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut NATIONALLICENCE 700 1- Wubs Martijn Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs., Lyngby, Denmark aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 193-199 1557-1955 8:2<193 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer