Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
Nano Lett. 2013 Jan 9;13(1):248-52. doi: 10.1021/nl303987y. Epub 2012 Dec 20.
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.
我们报告了一种新的实现灵活光子晶体（PC）腔的方法，该方法能够实现其共振频率的宽范围调谐。我们的 PC 腔由嵌入聚二甲基硅氧烷（PDMS）基质中的规则硅纳米线阵列组成，在电信波段表现出腔共振，通过机械拉伸可实现 60nm 以上的可逆调谐-这是二维（2D）PC 结构的记录。这些机械可重构器件在集成光子学、生物系统中的传感以及智能材料中可能有潜在的应用。
