Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip

Journal article


Publication Details

Author(s): Ploß D, Kriesch A, Pfeifer H, Banzer P, Peschel U
Journal: Optics Express
Publication year: 2014
Volume: 22
Journal issue: 11
Pages range: 13744-13754
ISSN: 1094-4087


Abstract

We demonstrate experimentally and numerically that in fiber tips as they are used in NSOMs azimuthally polarized electrical fields (|Eazi|2 / |Etot|2 $≈$55% $±$ 5% for \textgreekl0= 1550 nm), respectively subwavelength confined (FWHM $≈$450 nm $≈$\textgreekl0/3.5) magnetic fields, are generated for a certain tip aperture diameter (d = 1.4 \textgreekmm). We attribute the generation of this field distribution in metal-coated fiber tips to symmetry breaking in the bend and subsequent plasmonic mode filtering in the truncated conical taper.


FAU Authors / FAU Editors

Banzer, Peter Prof. Dr.
Lehrstuhl für Experimentalphysik (Optik)
Kriesch, Arian
Ploß, Daniel
Professur für Experimentalphysik
Peschel, Ulf Prof. Dr.
Professur für Experimentalphysik
Pfeifer, Hannes
Lehrstuhl für Experimentalphysik (Optik)
Institut für Optik, Information und Photonik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

C Photonic and Optical Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Ploß, D., Kriesch, A., Pfeifer, H., Banzer, P., & Peschel, U. (2014). Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip. Optics Express, 22(11), 13744-13754. https://dx.doi.org/10.1364/OE.22.013744

MLA:
Ploß, Daniel, et al. "Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip." Optics Express 22.11 (2014): 13744-13754.

BibTeX: 

Last updated on 2019-21-03 at 03:08