Surface-enhanced Raman scattering microchip fabricated by femtosecond laser

Cheng Hsiang Lin, Lan Jiang, Hai Xiao, Shean-Jen Chen, Hai Lung Tsai*

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We report a surface-enhanced Raman scattering (SERS) microchip that is capable of measuring SERS signals of liquid samples with high sensitivity. The microdevice is an integration of a silicon-based SERS substrate, a multimode optical fiber (MMF), and a microchannel embedded in the photosensitive glass fabricated by the femtosecond laser followed by thermal treatment, wet etching, and annealing. The performance of the SERS microchip is evaluated by measuring rhodamine 6G using a 632.8 nm He-Ne laser at 4.3 mW excitation power, which reveals that the detection limit is lower than 10-10 M at a 1 s short accumulation time.

Original languageEnglish
Pages (from-to)2937-2939
Number of pages3
JournalOptics Letters
Volume35
Issue number17
DOIs
StatePublished - 1 Sep 2010

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