Fast fabrication of a Ag nanostructure substrate using the femtosecond laser for broad-band and tunable plasmonic enhancement

Ming Lun Tseng, Yao Wei Huang, Min Kai Hsiao, Hsin Wei Huang, Hao Ming Chen, Yu Lim Chen, Cheng Hung Chu, Nien Nan Chu, You Je He, Chia Min Chang, Wei Chih Lin, Ding Wei Huang, Hai Pang Chiang, Ru Shi Liu, Greg Sun, Din Ping Tsai

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Figure Persented: 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.

Original languageEnglish
Pages (from-to)5190-5197
Number of pages8
JournalACS Nano
Volume6
Issue number6
DOIs
Publication statusPublished - 2012 Jun 26

Keywords

  • SERS
  • fluorescence enhancement
  • hotspot
  • laser-direct-writing technique
  • plasmonics

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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