Annotation
Ultrafast temporal evolution of the third harmonic generated by a fishnet metamaterial was studied using the pump-probe technique. The experimental data indicate the existence of a delay in the nonlinear response of the metamaterial. The delay is attributed to the ultrafast relaxation processes in gold characterized by a time constant of 1 ps that is comparable to the electron-phonon relaxation time.
Received: 2013 October 10
Approved: 2013 December 23
PACS:
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
78.67.Pt Multilayers; superlattices; photonic structures; metamaterials
42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
78.67.Pt Multilayers; superlattices; photonic structures; metamaterials
42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
A.S. Shorokhov, K.I. Okhlopkov, D.V. Chichinadze, M.R. Shcherbakov, A.A. Fedyanin
119991 Moscow, Leninskie Gory 1
119991 Moscow, Leninskie Gory 1
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