Surface-plasmon-induced enhancement of magneto-optical Kerr effect in all-nickel subwavelength nanogratings

摘要

Enhancement of transversal magneto-optical Kerr effect u0002TKEu0003 is controlled experimentally innmagnetoplasmonic subwavelength nanogratings made of nickel films by resonant excitation ofnsurface plasmon-polaritons u0002SPPsu0003. Almost one order of magnitude increase of the TKE value isnobserved in the spectral range of Wood’s anomaly corresponding to the fulfillment of thenphase-matching conditions for SPP excitation. © 2010 American Institute of Physics.nu0004doi:10.1063/1.3533260