A pair of gold nanowires, incorporated into a photonic crystal fiber, acts as a plasmonic “molecule.” Hybridized modes are excited at specific wavelengths by launching light into the glass core. The formation of bonding and antibonding solutions results in a modal splitting of more than 100 nm, even though the spatial separation between the wires is larger than 3 μm. The study provides insight into multiwire plasmonic devices with applications as polarizers or filters in near-field optics, nonlinear plasmonics, optical sensing, and telecommunications.
© 2012 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: March 20, 2012
Revised Manuscript: May 23, 2012
Manuscript Accepted: June 5, 2012
Published: July 13, 2012
H. W. Lee, M. A. Schmidt, and P. St. J. Russell, "Excitation of a nanowire “molecule” in gold-filled photonic crystal fiber," Opt. Lett. 37, 2946-2948 (2012)