title: A voltage-controlled silver nanograting device for dynamic modulation of transmitted light based on the surface plasmon polariton effect.
abstract: An active-controlled plasmonic device is designed and fabricated based on the index-sensitive properties of surface plasmon polaritons (SPPs). We utilize a one-dimensional silver nanograting with a period of 320 nm overlayered with a liquid crystal (LC) layer (50 μm in thickness), to transmit selectively the surface plasmon resonance (SPR) wavelength. This device realizes the active, reversible and continuous control of the transmitted light wavelength by modulating the external voltage signal applied to the LC layer. This voltage-controlled plasmonic filter has a dynamic wavelength modulation range of 17 nm, a fast respond speed of 4.24 ms and a low driving voltage of 1.06 V μm(-1). This study opens up a unique way for the design of tunable nanophotonic devices, such as a micro light sources and switches.
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, People's Republic of China. xuwq@jlu.edu.cn.
authors: Hailong
authors: H
authors: Wang
authors: Institute of Material Science, China Academy of Engineering Physics, Mianyang 621000, People's Republic of China.
authors: Haibo
authors: H
authors: Li
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, People's Republic of China. xuwq@jlu.edu.cn.
authors: Yi
authors: Y
authors: Wang
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, People's Republic of China. xuwq@jlu.edu.cn.
authors: Shuping
authors: S
authors: Xu
authors: State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, People's Republic of China. xuwq@jlu.edu.cn.
authors: Weiqing
authors: W
authors: Xu