title: Stretchable photonic crystal cavity with wide frequency tunability.
abstract: We report a new approach for realizing a flexible photonic crystal (PC) cavity that enables wide-range tuning of its resonance frequency. Our PC cavity consists of a regular array of silicon nanowires embedded in a polydimethylsiloxane (PDMS) matrix and exhibits a cavity resonance in the telecommunication band that can be reversibly tuned over 60 nm via mechanical stretching-a record for two-dimensional (2D) PC structures. These mechanically reconfigurable devices could find potential applications in integrated photonics, sensing in biological systems, and smart materials.
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: Chun L
authors.initials: CL
authors.lastname: Yu
authors.forename: Hyunwoo
authors.initials: H
authors.lastname: Kim
authors.forename: Nathalie
authors.initials: N
authors.lastname: de Leon
authors.forename: Ian W
authors.initials: IW
authors.lastname: Frank
authors.forename: Jacob T
authors.initials: JT
authors.lastname: Robinson
authors.forename: Murray
authors.initials: M
authors.lastname: McCutcheon
authors.forename: Mingzhao
authors.initials: M
authors.lastname: Liu
authors.forename: Mikhail D
authors.initials: MD
authors.lastname: Lukin
authors.forename: Marko
authors.initials: M
authors.lastname: Loncar
authors.forename: Hongkun
authors.initials: H
authors.lastname: Park