title: Laser fabrication of Au nanorod aggregates microstructures assisted by two-photon polymerization.
abstract: We demonstrate fabrication of Au nanorod aggregates microstructures by means of a femtosecond near-infrared laser. The laser light was tightly focused into colloidal Au nanorods dispersed in photopolymerizable metyl-methacrylate (MMA) compound to induce two-photon polymerization (TPP). TPP of MMA glued the nanorods together to form solid microstrucures of aggregates. The laser light excited a local surface plasmon, resulting in confinement of TPP in the vicinity of nanorods. Concurrenly occurring optical accumulation of nanorods created a unique mechanism for the formation of nanorod aggregates into desired microstructures. This technique would be a clue for a novel micro/nanofabrication method for plasmonic materials and devices.
authors: Laboratory of Organic NanoPhotonics and Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors: Kyoko
authors: K
authors: Masui
authors: Satoru
authors: S
authors: Shoji
authors: Kenji
authors: K
authors: Asaba
authors: Thomas C
authors: TC
authors: Rodgers
authors: Feng
authors: F
authors: Jin
authors: Xuan-Ming
authors: XM
authors: Duan
authors: Satoshi
authors: S
authors: Kawata