title: One-dimensional long-range plasmonic-photonic structures.
abstract: We have fabricated line gratings from periodically etched fused silica on which a thin silver film is deposited that is in turn covered with a silica index-matched fluid. This dielectrically symmetric geometry supports an independent long-range surface plasmon-polariton (LRSPP) and a short-range surface plasmon polariton, and the associated plasmonic band structure has been probed. Coupling to external light is achieved via the patterned grating, and an ultrasharp LRSPP linewidth of 4 nm is observed. The experimental results are compared with finite-difference time-domain simulations.
authors.affiliation: Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
authors.forename: W
authors.initials: W
authors.lastname: Mu
authors.forename: D B
authors.initials: DB
authors.lastname: Buchholz
authors.forename: M
authors.initials: M
authors.lastname: Sukharev
authors.forename: J I
authors.initials: JI
authors.lastname: Jang
authors.forename: R P H
authors.initials: RP
authors.lastname: Chang
authors.forename: J B
authors.initials: JB
authors.lastname: Ketterson