Nonlocal nonlinear magneto-optical response of a magnetoplasmonic crystal

作者：Razdolski I^*; Gheorghe D G; Melander E; Hjorvarsson B; Patoka P; Kimel A V; Kirilyuk A; Papaioannou E Th; Rasing Th

来源：Physical Review B, 2013, 88(7): 075436.

DOI：10.1103/PhysRevB.88.075436

Surface plasma resonance (SPR) excitation in a Co-based two-dimensional magnetoplasmonic crystal was found to strongly enhance the second-harmonic generation (SHG) efficiency. Large changes in the phase shift between magnetic and nonmagnetic SHG contributions were observed in the transversal Kerr effect as a function of the incidence angle. The activation of a nonlocal quadrupole mechanism of the magnetic SHG due to the SPR excitation was found to lead to an unusual phase behavior in the vicinity of the resonance.

• 出版日期2013-8-29