title: Plasmonic nanolaser using epitaxially grown silver film.
abstract: A nanolaser is a key component for on-chip optical communications and computing systems. Here, we report on the low-threshold, continuous-wave operation of a subdiffraction nanolaser based on surface plasmon amplification by stimulated emission of radiation. The plasmonic nanocavity is formed between an atomically smooth epitaxial silver film and a single optically pumped nanorod consisting of an epitaxial gallium nitride shell and an indium gallium nitride core acting as gain medium. The atomic smoothness of the metallic film is crucial for reducing the modal volume and plasmonic losses. Bimodal lasing with similar pumping thresholds was experimentally observed, and polarization properties of the two modes were used to unambiguously identify them with theoretically predicted modes. The all-epitaxial approach opens a scalable platform for low-loss, active nanoplasmonics.
authors: Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan.
authors: Yu-Jung
authors: YJ
authors: Lu
authors: Jisun
authors: J
authors: Kim
authors: Hung-Ying
authors: HY
authors: Chen
authors: Chihhui
authors: C
authors: Wu
authors: Nima
authors: N
authors: Dabidian
authors: Charlotte E
authors: CE
authors: Sanders
authors: Chun-Yuan
authors: CY
authors: Wang
authors: Ming-Yen
authors: MY
authors: Lu
authors: Bo-Hong
authors: BH
authors: Li
authors: Xianggang
authors: X
authors: Qiu
authors: Wen-Hao
authors: WH
authors: Chang
authors: Lih-Juann
authors: LJ
authors: Chen
authors: Gennady
authors: G
authors: Shvets
authors: Chih-Kang
authors: CK
authors: Shih
authors: Shangjr
authors: S
authors: Gwo