Active magnetoplasmonic ruler
Artikel i vetenskaplig tidskrift, 2015

Plasmon rulers are an emerging concept in which the strong near-field coupling of plasmon nanoantenna elements is employed to obtain structural information at the nanoscale. Here, we combine nanoplasmonics and nanomagnetism to conceptualize a magnetoplasmonic dimer nanoantenna that would be able to report nanoscale distances while optimizing its own spatial orientation. The latter constitutes an active operation in which a dynamically optimized optical response per measured unit length allows for the measurement of small and large nanoscale distances with about 2 orders of magnitude higher precision than current state-of-the-art plasmon rulers. We further propose a concept to optically measure the nanoscale response to the controlled application of force with a magnetic field.

dimer

cobalt

nickel

plasmon ruler

magneto-optical Kerr effect (MOKE)

magnetoplasmonics

localized surface plasmon resonance

Författare

Irina Zubritskaya

Chalmers, Teknisk fysik, Bionanofotonik

Kristof Lodewijks

Chalmers, Teknisk fysik, Bionanofotonik

N. Maccaferri

Addis Mekonnen

Chalmers, Teknisk fysik, Bionanofotonik

Randy K. Dumas

Göteborgs universitet

Johan Åkerman

Göteborgs universitet

Paolo Vavassori

Ikerbasque, the Basque Foundation for Science

Alexander Dmitriev

Chalmers, Teknisk fysik, Bionanofotonik

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 15 3204-3211

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Ämneskategorier

Nanoteknik

DOI

10.1021/acs.nanolett.5b00372