title: Surface-normal electro-optic spatial light modulator using graphene integrated on a high-contrast grating resonator.
abstract: We demonstrate efficient optical modulation of surface-normal reflection in a novel device structure integrating graphene on a high contrast grating (HCG) resonator. As high as 11 dB extinction ratio is achieved by varying the voltage applied to a single atomic layer of graphene on a HCG resonator. The device topology facilitates easy fabrication of large 2D arrays, and free-space operation. We also demonstrate a graphene-oxide-graphene structure which can potentially operate at MHz operation speed. The devices are fully fabricated by standard CMOS compatible processes indicating that the integrated structure of graphene-on-HCG shows great promise for display, imaging and interconnects applications with low-cost and large scalability.
authors.forename: Tianbo
authors.initials: T
authors.lastname: Sun
authors.forename: Jonghwan
authors.initials: J
authors.lastname: Kim
authors.forename: Jong Min
authors.initials: JM
authors.lastname: Yuk
authors.forename: Alex
authors.initials: A
authors.lastname: Zettl
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Connie
authors.initials: C
authors.lastname: Chang-Hasnain