title: Short-range surface plasmon propagation supported by stimulated amplification using electrical injection.
abstract: We have investigated the propagation of the long-range mode (LRSP) and the short-range mode (SRSP) surface plasmon polaritons (SPPs) along the waveguide made from Au film and quantum wells (QWs) gain medium. Influenced by the gain spectral nonuniformity, the SRSP showed narrower spectrum than the LRSP in output, denoting that the SRSP propagation was supported by stimulated amplification (SA) in electrically-pumped QWs. An SRSP output power as large as 1.6 times of that of the LRSP was obtained over a travelling distance of 80 μm. The mechanism of SA-supported SRSP propagation can be adopted for electrical modulation of SPPs.
authors: Nanophotonics Laboratory, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.
authors: Yicen
authors: Y
authors: Li
authors: Hui
authors: H
authors: Zhang
authors: Ning
authors: N
authors: Zhu
authors: Ting
authors: T
authors: Mei
authors: Dao Hua
authors: DH
authors: Zhang
authors: Jinghua
authors: J
authors: Teng