title: Highly flexible all-optical metamaterial absorption switching assisted by Kerr-nonlinear effect.
abstract: A three-dimensional metamaterial nanostructure for realizing all-optical absorption switching is proposed and investigated. The structure consists of dual metallic layers for allowing near-perfect absorption due to electric and magnetic resonances, and a nonlinear Kerr-dielectric layer for actively manipulating the nanostructure absorption. The finite-difference time-domain simulation results demonstrate that, by adjusting the incident optical intensity, the metamaterial absorption can be flexibly tuned from near unity to zero. The all-optical absorption switching structure can find potential applications in actively integrated photonic circuits for thermal sensing, photo detecting, and optical imaging.
authors.affiliation: 　State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China.
authors.forename: Yongkang
authors.initials: Y
authors.lastname: Gong
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Li
authors.forename: Jinxin
authors.initials: J
authors.lastname: Fu
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Chen
authors.forename: Guoxi
authors.initials: G
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Lu
authors.forename: Leirang
authors.initials: L
authors.lastname: Wang
authors.forename: Xueming
authors.initials: X
authors.lastname: Liu