Fibonacci-sequence gratings based on metal–insulator–metal waveguides are proposed. The spectrum properties of this structure are numerically investigated by using the transfer matrix method. Numerical results demonstrate that the proposed structure can generate high-channel-count plasmonic stop bands and can find significant applications in highly integrated dense wavelength division multiplexing networks.
© 2010 Optical Society of America
Original Manuscript: September 29, 2009
Revised Manuscript: December 11, 2009
Manuscript Accepted: December 16, 2009
Published: January 22, 2010
Yongkang Gong, Xueming Liu, and Leiran Wang, "High-channel-count plasmonic filter with the metal–insulator–metal Fibonacci-sequence gratings," Opt. Lett. 35, 285-287 (2010)