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Nano Lett. 2013 Jan 9;13(1):248-52. doi: 10.1021/nl303987y. Epub 2012 Dec 20.

Stretchable photonic crystal cavity with wide frequency tunability.

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  • 1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.

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.

PMID:
23245191
DOI:
10.1021/nl303987y
[PubMed]
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