Three-dimensional nanotransmission lines at optical frequencies: A recipe for broadband negative-refraction optical metamaterialsDepartmental Papers (ESE)
AbstractWe apply the optical nanocircuit concepts to design and analyze in detail a three-dimensional (3D) plasmonic nanotransmission line network that may act as a relatively broadband negative-refraction metamaterial at infrared and optical frequencies. After discussing the heuristic concepts in our theory, we show full-wave analytical results of the expected behavior of such materials, which show increased bandwidth and relative robustness to losses. The possibility and constraints of getting a 3D fully isotropic response are also explored and conditions for minimal losses and increased bandwidth are discussed. Full-wave analytical results for some design examples employing realistic plasmonic materials at infrared and optical frequencies are also presented, and the case of a subwavelength imaging system using a slab of this material is numerically investigated.
Document TypeJournal Article
Date of this Version1-1-2007
- metamaterials; optical materials; light refraction; refractive index; integrated optics; nanotechnology
Citation InformationAndrea Alù and Nader Engheta. "Three-dimensional nanotransmission lines at optical frequencies: A recipe for broadband negative-refraction optical metamaterials" (2007)
Available at: http://works.bepress.com/nader_engheta/64/