title: Broadband near ultraviolet random lasing in ZnO 3-D nanowalls.
abstract: Broadband near ultraviolet (NUV) random laser was achieved by Au nanoparticle loaded ZnO 3-D nanowalls. Au nanoparticle was loaded on ZnO 3-D nanowalls by photo-chemical deposition method using ionic liquid. The optical confinement by the 3-D nanowalls and enhancement of incident light scattering by Au nanoparticle increase the number of resonant modes, and thus leading to a broadband multiple spectrum random lasing. The results demonstrate an important step towards to expand the application scope of NUV laser on medical imaging of cells, solid-state lighting and optical sensor.
authors.affiliation: Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No. 2 Nengyuan Road, Wushan, Tianhe district, Guangzhou, 510640, P R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Miao
authors.forename: Sakae
authors.initials: S
authors.lastname: Tanemura
authors.forename: Hui Ying
authors.initials: HY
authors.lastname: Yang
authors.forename: Kenta
authors.initials: K
authors.lastname: Yoshida