Yu, ChunxiaoKim, Hyunwoode Leon, Nathalie PulmonesFrank, Ian WardRobinson, Jacob T.McCutcheon, MurrayLiu, MingzhaoLukin, MikhailLoncar, MarkoPark, Hongkun2017-08-072013Yu, Chun L., Hyunwoo Kim, Nathalie de Leon, Ian W. Frank, Jacob T. Robinson, Murray McCutcheon, Mingzhao Liu, Mikhail D. Lukin, Marko Loncar, and Hongkun Park. 2013. “Stretchable Photonic Crystal Cavity with Wide Frequency Tunability.” Nano Letters 13 (1) (January 9): 248–252. doi:10.1021/nl303987y.1530-6984http://nrs.harvard.edu/urn-3:HUL.InstRepos:33719342We 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.en-USPhotonic crystalnanowireresonance frequency tuningflexible deviceJournal Article10.1021/nl303987y