title: Improved Slow Light Capacity In Graphene-based Waveguide.
abstract: We have systematically investigated the wideband slow light in two-dimensional material graphene, revealing that graphene exhibits much larger slow light capability than other materials. The slow light performances including material dispersion, bandwidth, dynamic control ability, delay-bandwidth product, propagation loss, and group-velocity dispersion are studied, proving graphene exhibits significant advantages in these performances. A large delay-bandwidth product has been obtained in a simple yet functional grating waveguide with slow down factor c/v(g) at 163 and slow light bandwidth Δω at 94.4 nm centered at 10.38 μm, which is several orders of magnitude larger than previous results. Physical explanation of the enhanced slow light in graphene is given. Our results indicate graphene is an excellent platform for slow light applications, promoting various future slow light devices based on graphene.
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Hao
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Xi-Liang
authors.initials: XL
authors.lastname: Peng
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Er-Ping
authors.initials: EP
authors.lastname: Li
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Xu
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Jia-Min
authors.initials: JM
authors.lastname: Jin
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Xian-Min
authors.initials: XM
authors.lastname: Zhang
authors.affiliation: College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China.
authors.forename: Hong-Sheng
authors.initials: HS
authors.lastname: Chen