Second harmonic generation of long-range surface plasmon polaritons excited by a finite 1-D beam are discussed. To simplify the analysis of second harmonic generation, we adopt the “pole cancellation” method originally developed by Sipe. A numerical calculation of second harmonic intensity is presented. It is found that the effect of beam size on second harmonic intensity should be taken into account in actual experiments.
© 1985 Optical Society of America
M. Fukui, S. Tago, H. Dohi, and O. Tada, "Optical second harmonic generation by long-range surface plasmon polaritons excited by a finite 1-D beam," Appl. Opt. 24, 1220-1223 (1985)