Surface plasmon wave adapter designed with transformation optics.
basic_science · Level V
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- Record sourced from PubMed, PMID 21568329.
- Also identified by DOI 10.1021/nn200516r.
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Abstract
On the basis of transformation optics, we propose the design of a surface plasmon wave adapter which confines surface plasmon waves on non-uniform metal surfaces and enables adiabatic mode transformation of surface plasmon polaritons with very short tapers. This adapter can be simply achieved with homogeneous anisotropic naturally occurring materials or subwavelength grating-structured dielectric materials. Full wave simulations based on a finite-element method have been performed to validate our proposal.