title: Single-nanowire single-mode laser.
abstract: We demonstrate single-mode laser emission in single nanowires. By folding a 200 nm diameter CdSe nanowire to form loop mirrors, single-mode laser emission around 738 nm wavelength is obtained with line width of 0.12 nm and low threshold. The mode selection is realized by the vernier effect of coupled cavities in the folded nanowire. In addition, the loop structure makes it possible to tune the nanowire cavity, opening an opportunity to realize a tunable single-mode nanowire laser.
authors.affiliation: State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Xiao
authors.forename: Chao
authors.initials: C
authors.lastname: Meng
authors.forename: Pan
authors.initials: P
authors.lastname: Wang
authors.forename: Yu
authors.initials: Y
authors.lastname: Ye
authors.forename: Huakang
authors.initials: H
authors.lastname: Yu
authors.forename: Shanshan
authors.initials: S
authors.lastname: Wang
authors.forename: Fuxing
authors.initials: F
authors.lastname: Gu
authors.forename: Lun
authors.initials: L
authors.lastname: Dai
authors.forename: Limin
authors.initials: L
authors.lastname: Tong