Light-Triggered Control of Plasmonic Refraction and Group Delay by Photochromic Molecular Switches
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- 作者：Malte Gro脽mann ; Alwin Klick ; Christoph Lemke ; Julian Falke ; Maximilian Black ; Jacek Fiutowski ; Arkadiusz Jaroslaw Goszczak ; Elzbieta Sobolewska ; Ahnaf Usman Zillohu ; Mehdi Keshavarz Hedayati ; Horst-Guenter Rubahn ; Franz Faupel ; Mady Elbahri ; Michael Bauer
- 刊名：ACS Photonics
- 出版年：2015
- 出版时间：September 16, 2015
- 年：2015
- 卷：2
- 期：9
- 页码：1327-1332
- 全文大小：525K
- ISSN：2330-4022
文摘
An interface supporting plasmonic switching is prepared from a gold substrate coated with a polymer film doped with photochromic molecular switches. A reversible light-induced change in the surface plasmon polariton dispersion curve of the interface is experimentally demonstrated, evidencing reversible switching of the surface plasmon polariton group and phase velocity. The switching capabilities of the interface are furthermore successfully applied to achieve focus control of a plasmonic lens. The results imply the realization of nonvolatile and reversible plasmonic switching units providing complex functionalities based on surface plasmon refraction and group delay.