title: Surface plasmon enhanced electrically pumped random lasers.
abstract: Electrically pumped random lasing has been realized in Au/MgO/ZnO structures. By incorporating Ag nanoparticles, whose extinction spectrum overlaps well with the emission spectrum of the structures, the threshold of the random lasing can be decreased from 63 mA to 21 mA. The decrease in the threshold has been attributed to the resonant coupling between the carriers in the active layer of the structures and the surface plasmon of the Ag nanoparticles.
authors.affiliation: State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888 Dongnanhu Road, Changchun, 130033, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Qiao
authors.forename: Chong-Xin
authors.initials: CX
authors.lastname: Shan
authors.forename: Jian
authors.initials: J
authors.lastname: Zheng
authors.forename: Hai
authors.initials: H
authors.lastname: Zhu
authors.forename: Siu-Fung
authors.initials: SF
authors.lastname: Yu
authors.forename: Bing-Hui
authors.initials: BH
authors.lastname: Li
authors.forename: Yan
authors.initials: Y
authors.lastname: Jia
authors.forename: De-Zhen
authors.initials: DZ
authors.lastname: Shen