Active magnetoplasmonic ruler
Journal article, 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

magnetoplasmonics

nickel

cobalt

localized surface plasmon resonance

magneto-optical Kerr effect (MOKE)

plasmon ruler

Author

Irina Zubritskaya

Chalmers, Applied Physics, Bionanophotonics

Kristof Lodewijks

Chalmers, Applied Physics, Bionanophotonics

N. Maccaferri

Addis Mekonnen

Chalmers, Applied Physics, Bionanophotonics

Randy K. Dumas

University of Gothenburg

Johan Åkerman

University of Gothenburg

Paolo Vavassori

Basque Foundation for Science (Ikerbasque)

Alexander Dmitriev

Chalmers, Applied Physics, Bionanophotonics

Nano Letters

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

Vol. 15 5 3204-3211

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Materials Science

Subject Categories

Nano Technology

DOI

10.1021/acs.nanolett.5b00372

More information

Latest update

6/12/2018