k-space imaging of the eigenmodes of sharp gold tapers for scanning near-field optical microscopy

k-space imaging of the eigenmodes of sharp gold tapers for scanning near-field optical microscopy

We investigate the radiation patterns of sharp conical gold tapers, which were designed as adiabatic nanofocusing probes for scanning near-field optical microscopy (SNOM). Field calculations show that only the lowest order eigenmode of such a taper can reach the very apex and thus induce the generat...

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Bibliographic Details
Main Authors: Martin Esmann, Simon F. Becker, Bernard B. da Cunha, Jens H. Brauer, Ralf Vogelgesang, Petra Groß, Christoph Lienau
Format: Article
Language:English
Published: Beilstein-Institut 2013-10-01
Series:Beilstein Journal of Nanotechnology
Subjects:
adiabatic nanofocusing
Fourier optics
metallic wire modes
plasmonics
scanning near-field optical microscopy (SNOM)
Online Access:https://doi.org/10.3762/bjnano.4.67

Internet

https://doi.org/10.3762/bjnano.4.67

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