title: Double plasmonic nanodisks design for electromagnetically induced transparency and slow light.
abstract: An analog of plasmonic system for electromagnetically induced transparency (EIT), in which a small nanodisk with a big side-coupled-nanodisk is directly coupled to the metal-insulator -metal (MIM) waveguide, has been proposed and investigated theoretically and numerically. When the resonant frequencies of the two nanodisks differ not too much, a powerful EIT-like effect can be obtained, and the transparency window can be easily tuned by adjusting the radii of the two nanodisks. The plasmonic device can be used as a high-performance EIT-like filter with transmission over 80% and full width at half-maximum (FWHM) less than 30nm, besides, the novel structure shows a high group index over 355. The system paves a new way toward highly integrated optical circuits and networks, especially for wavelength-selective, ultrafast switching, light storage and nonlinear devices.
authors.forename: Gen
authors.initials: G
authors.lastname: Lai
authors.forename: Ruisheng
authors.initials: R
authors.lastname: Liang
authors.forename: Yujing
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Bian
authors.forename: Lixuan
authors.initials: L
authors.lastname: Yi
authors.forename: Guangzhi
authors.initials: G
authors.lastname: Zhan
authors.forename: Ruitong
authors.initials: R
authors.lastname: Zhao