title: Large third-order optical nonlinear effects of gold nanoparticles with unusual fluorescence enhancement.
abstract: The third-order nonlinear optical properties of two solutions of gold nanoparticles protected by carbazolyldiacetylene derivatives were investigated using the Z-scan technique. Both gold nanoparticle colloid solutions in toluene show unusual fluorescent enhancement and large third-order nonlinear optical properties including nonlinear absorption and refractive effects. When extending the pi-conjugated length of the ligands, the third-order nonlinear properties of composite materials based on gold nanoparticles were enhanced accordingly.
authors.affiliation: Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Lv
authors.forename: Li
authors.initials: L
authors.lastname: Jiang
authors.forename: Cuihong
authors.initials: C
authors.lastname: Li
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Liu
authors.forename: Mingjian
authors.initials: M
authors.lastname: Yuan
authors.forename: Jialiang
authors.initials: J
authors.lastname: Xu
authors.forename: Weidong
authors.initials: W
authors.lastname: Zhou
authors.forename: Yinglin
authors.initials: Y
authors.lastname: Song
authors.forename: Huibiao
authors.initials: H
authors.lastname: Liu
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Li
authors.forename: Daoben
authors.initials: D
authors.lastname: Zhu