Surface plasmon propagation in an elliptical corral

Drezet, A.; Stepanov, A. L.; Ditlbacher, H.; Hohenau, A.; Steinberger, B.; Aussenegg, F. R.; Leitner, A.; Krenn, J. R.
February 2005
Applied Physics Letters;2/14/2005, Vol. 86 Issue 7, p074104
Academic Journal
We report the experimental realization of an elliptical Bragg reflector acting as an interferometer for propagating surface plasmon (SP) waves. We investigate SP interferometry in this device using a leakage radiation microscope and we compare our observations with a theoretical model for SP propagation. Strong SP focalization as a function of laser polarization orientation is observed and justified.


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