title: Fast fabrication of a Ag nanostructure substrate using the femtosecond laser for broad-band and tunable plasmonic enhancement.
abstract: Using a femtosecond laser, we have transformed the laser-direct-writing technique into a highly efficient method that can process AgO(x) thin films into Ag nanostructures at a fast scanning rate of 2000 μm(2)/min. The processed AgO(x) thin films exhibit broad-band enhancement of optical absorption and effectively function as active SERS substrates. Probing of the plasmonic hotspots with dyed polymer beads indicates that these hotspots are uniformly distributed over the treated area.
authors.affiliation: Graduate Institute of Applied Physics, National Taiwan University, Taipei 106, Taiwan.
authors.forename: Ming Lun
authors.initials: ML
authors.lastname: Tseng
authors.forename: Yao-Wei
authors.initials: YW
authors.lastname: Huang
authors.forename: Min-Kai
authors.initials: MK
authors.lastname: Hsiao
authors.forename: Hsin Wei
authors.initials: HW
authors.lastname: Huang
authors.forename: Hao Ming
authors.initials: HM
authors.lastname: Chen
authors.forename: Yu Lim
authors.initials: YL
authors.lastname: Chen
authors.forename: Cheng Hung
authors.initials: CH
authors.lastname: Chu
authors.forename: Nien-Nan
authors.initials: NN
authors.lastname: Chu
authors.forename: You Je
authors.initials: YJ
authors.lastname: He
authors.forename: Chia Min
authors.initials: CM
authors.lastname: Chang
authors.forename: Wei Chih
authors.initials: WC
authors.lastname: Lin
authors.forename: Ding-Wei
authors.initials: DW
authors.lastname: Huang
authors.forename: Hai-Pang
authors.initials: HP
authors.lastname: Chiang
authors.forename: Ru-Shi
authors.initials: RS
authors.lastname: Liu
authors.forename: Greg
authors.initials: G
authors.lastname: Sun
authors.forename: Din Ping
authors.initials: DP
authors.lastname: Tsai
mesh_terms: D003460:Crystallization / Q000379:methods; D006046:Gold / Q000737:chemistry* / Q000528:radiation effects*; D007834:Lasers; D046911:Macromolecular Substances / Q000737:chemistry / Q000528:radiation effects; D008422:Materials Testing; D008968:Molecular Conformation / Q000528:radiation effects; D054802:Molecular Imprinting / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010316:Particle Size; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties / Q000528:radiation effects
chemical_list: D046911:Macromolecular Substances; D006046:Gold