Designer magnetoplasmonics with nickel nanoferromagnets.
We introduce a new perspective on magnetoplasmonics in nickel nanoferromagnets by exploiting the phase tunability of the optical polarizability due to localized surface plasmons and simultaneous magneto-optical activity. We demonstrate how the concerted action of nanoplasmonics and magnetization can manipulate the sign of rotation of the reflected light's polarization (i.e., to produce Kerr rotation reversal) in ferromagnetic nanomaterials and, further, how this effect can be dynamically controlled and employed to devise conceptually new schemes for biochemosensing.
Department of Applied Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden. bonanni@chalmers.se
Valentina
V
Bonanni
Stefano
S
Bonetti
Tavakol
T
Pakizeh
Zhaleh
Z
Pirzadeh
Jianing
J
Chen
Josep
J
Nogués
Paolo
P
Vavassori
Rainer
R
Hillenbrand
Johan
J
Åkerman
Alexandre
A
Dmitriev