Electromechanically Tunable Carbon Nanofiber Photonic Crystal
详细信息 查看全文
- 作者：Robert Rehammar ; Farzan Alavian Ghavanini ; Roger Magnusson ; Jari M. Kinaret ; Peter Enoksson ; Hans Arwin ; Eleanor E. B. Campbell
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：February 13, 2013
- 年：2013
- 卷：13
- 期：2
- 页码：397-401
- 全文大小：268K
- 年卷期：v.13,no.2(February 13, 2013)
- ISSN：1530-6992
文摘
We demonstrate an electrically tunable 2D photonic crystal array constructed from vertically aligned carbon nanofibers. The nanofibers are actuated by applying a voltage between adjacent carbon nanofiber pairs grown directly on metal electrodes, thus dynamically changing the form factor of the photonic crystal lattice. The change in optical properties is characterized using optical diffraction and ellipsometry. The experimental results are shown to be in agreement with theoretical predictions and provide a proof-of-principle for rapidly switchable photonic crystals operating in the visible that can be fabricated using standard nanolithography techniques combined with plasma CVD growth of the nanofibers.