Title: Transmission of Light through Magnetic Nanocavities
Authors: Patoka, Piotr ×
Skeren, Tomas
Hilgendorff, Michael
Zhi, Linjie
Paudel, Trilochan
Kempa, Krzysztof
Giersig, Michael #
Issue Date: Nov-2011
Publisher: Wiley
Series Title: Small vol:7 issue:21 pages:3096-3100
Abstract: The transmission of light through a metallic film stack on a transparent substrate, perforated with a periodic array of cylindrical holes/nanocavities, is studied. The structure is fabricated by using self-assembled nanosphere lithography. Since one layer in the film stack is made of a ferromagnetic metal (iron), exposure of the structure to a solution containing iron oxide nanoparticles causes nanoparticle accumulation inside the nanocavities. This changes the dielectric constant inside the nanocavities and thus affects the light transmission. Simulations are in good agreement with experiment, and show large sensitivity of the response to the amount of iron oxide nanoparticles deposited. This could be used in various sensor applications.
ISSN: 1613-6810
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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