Focusing of surface plasmon polaritons by parabolic dielectric gratings formed on top of a 100nm thick Au film has been studied. Complex interference effects are observed in a “cavity” between two sets of parabolic gratings.
© 2007 OSA
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
Y. Hung, I. I. Smolyaninov, and C. C. Davis, "Focusing of Surface Plasmon Polaritons by Surface Parabolic Dielectric Gratings," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CWC5.
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