855 citations · 1k across the 7 of their papers we have counts for
7 papers
Vectorial near-field coupling
Martin Esmann, Simon F. Becker, Julia Witt +3
The coherent exchange of optical near fields between two neighboring dipoles plays an essential role for the optical properties, quantum dynamics and thus for the function of many…
k-space Imaging of the Eigenmodes of Sharp Gold Tapers for Scanning Near-Field Optical Microscopy
Martin Esmann, Simon F. Becker, Bernard B. da Cunha +4
We investigate the radiation patterns of sharp conical gold tapers, designed as adiabatic nanofocusing probes for scanning near-field optical microscopy (SNOM). Field calculations…
Breaking the Mode Degeneracy of Surface-Plasmon Resonances in a Triangular System
Nahid Talebi, Wilfried Sigle, Ralf Vogelgesang +6
In this paper, we present a systematic investigation of symmetry-breaking in the plasmonic modes of triangular gold nanoprisms. Their geometrical C3 symmetry is one of the simplest…
Relating localized nanoparticle resonances to an associated antenna problem
Shakeeb Bin Hasan, Carsten Rockstuhl, Ralf Vogelgesang +1
We conceptually unify the description of resonances existing at metallic nanoparticles and optical nanowire antennas. To this end the nanoantenna is treated as a Fabry-Perot resona…
Electronic Band Structure Mapping of Nanotube Transistors by Scanning Photocurrent Microscopy
E. J. H. Lee, K. Balasubramanian, J. Dorfmueller +5
Spatially resolved photocurrent measurements on carbon nanotube field-effect transistors (CNFETs) operated in various transport regimes are reported. It is demonstrated that the ph…
Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
Christian R. Ast, Daniela Pacilé, Mihaela Falub +7
Surface alloying is shown to produce electronic states with a very large spin-splitting. We discuss the long range ordered bismuth/silver(111) surface alloy where an energy bands s…