Observation of Goos-Hänchen shifts in metallic reflection.
We report the first observation of the Goos-Hänchen shift of a light beam incident on a bare metal surface. This phenomenon is particularly interesting because the Goos-Hänchen shift for p polarized light in metals is negative and much bigger than the positive shift for s polarized light. The experimental result for the measured shifts as a function of the angle of incidence is in excellent agreement with theoretical predictions. In an energy-flux interpretation, our measurement shows the existence of a backward energy flow at the bare metal surface when this is excited by a p polarized beam of light.
Merano
M
M
Aiello
A
A
't Hooft
G W
GW
van Exter
M P
MP
Eliel
E R
ER
Woerdman
J P
JP