title: Imaging collective magnonic modes in 2D arrays of magnetic nanoelements.
abstract: We have used time resolved scanning Kerr microscopy to image collective spin wave modes within a 2D array of magnetic nanoelements. Long wavelength spin waves are confined within the array as if it was a continuous element of the same size but with effective material properties determined by the structure of the array and its constituent nanoelements. The array is an example of a magnonic metamaterial, the demonstration of which provides new opportunities within the emerging field of magnonics.
authors.affiliation: School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, United Kingdom. V.V.Kruglyak@exeter.ac.uk
authors.forename: V V
authors.initials: VV
authors.lastname: Kruglyak
authors.forename: P S
authors.initials: PS
authors.lastname: Keatley
authors.forename: A
authors.initials: A
authors.lastname: Neudert
authors.forename: R J
authors.initials: RJ
authors.lastname: Hicken
authors.forename: J R
authors.initials: JR
authors.lastname: Childress
authors.forename: J A
authors.initials: JA
authors.lastname: Katine