title: Stimulated emissions in aligned CdS nanowires at room temperature.
abstract: Aligned CdS nanowires (NWs) were obtained through a simple thermal evaporation process with highly active CdS nanoparticles as the evaporation source. These NWs show prominent optical waveguides behavior under a continuous-wave (CW) laser excitation. Excitation intensity-dependent photoluminescence (PL) measurements show that these NWs exhibited both broad and supernarrow stimulated emission (lasing) under intense pulse optical excitation at room temperature. Raman scattering and time-resolved PL measurements were used to investigate the optical properties. The results indicated that the stimulated emission in these NWs involves the electron-hole plasma (EHP) and Farby-Perot (F-P) optical resonant processes at room temperature.
authors.affiliation: Micro-Nano Technologies Research Center, Hunan University, Changsha 410082, China.
authors.forename: Anlian
authors.initials: A
authors.lastname: Pan
authors.forename: Ruibin
authors.initials: R
authors.lastname: Liu
authors.forename: Qing
authors.initials: Q
authors.lastname: Yang
authors.forename: Yongchun
authors.initials: Y
authors.lastname: Zhu
authors.forename: Guozhen
authors.initials: G
authors.lastname: Yang
authors.forename: Bingsuo
authors.initials: B
authors.lastname: Zou
authors.forename: Keqiu
authors.initials: K
authors.lastname: Chen