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VOLUME 43 (1986) | ISSUE 5 | PAGE 219
Intensification of the surface-enhanced second-harmonic signal from island silver films in a geometry of frustrated total internal reflection
Experiments have been carried out on surface-enhanced second-harmonic generation at island silver films. The second-harmonic signal is found to increase sharply if the pump beam is incident on the film at an angle exceeding the angle of total internal reflection for the substrate-air interface. An appropriate choice of substrate material can raise the efficiency of second-harmonic generation at such films.