Magnetization-induced optical second-harmonic generation and local surface plasmons in magnetic Coₓ Ag₁₋ₓ nanogranular films
Kim, E. M. · Murzina, T. V. · Kravets, A. F. · Inoue, M. · Marowsky, G. · Aktsipetrov, O. A.
Original · EN
Spectroscopy of magnetization-induced second-harmonic generation (MSHG) is studied in magnetic CoₓAg₁₋ₓ granular films containing Co nanoparticles. A strong resonance of the magnetic contrast of the second-harmonic generation (SHG) intensity is observed in the two-photon energy range from 3,8 eV to 4,5 eV. The local surface plasmons exited in magnetic Co nanogranules in this spectral range assist MSHG and are responsible for a significant enhancement of the SHG magnetic contrast due to the resonances of local optical fields.
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