Nonlocal effects on second-harmonic generation in a Pöschl-Teller quantum well
Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631, P.R. China
Revised: 11 May 2008
Published online: 20 June 2008
Nonlocal effects on the energy conversion efficiency of the second-harmonic generation (SHG) for a p-polarized incident field in a Pöschl-Teller quantum well (PTQW) are investigated in detail. The numerical results show that the spatial distribution of the second-harmonic field is nonuniform, and that there exist two resonance peaks in the second-harmonic energy reflection spectra, and their positions have a notable blueshift because of the nonlocal effects. A very important property is that a maximum blueshift at the second-harmonic resonance can be obtained by adopting a proper quantum-well width and donor concentration, which may be interesting in future precision experiments.
PACS: 68.65.Fg – Quantum wells / 42.65.Ky – Frequency conversion; harmonic generation, including higher-order harmonic generation / 11.10.Lm – Nonlinear or nonlocal theories and models
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2008