期刊
OPTICS EXPRESS
卷 28, 期 5, 页码 6648-6662出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.386215
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资金
- National Natural Science Foundation of China [11874111, 51771189, 61771138]
- Science and Technology Planning Project of Guangdong Province [2017A010102019]
- Dongguan Social Science and Technology Development Project [2019507140172]
Optical fiber surface-enhanced Raman scattering (SERS) probes provide a novel platform for liquid-phase in situ and remote SERS detections. However, it is still a challenge to fabricate noble metal nanostructures with large SERS enhancement factor (EF) onto optical fiber surfaces. In this article, we successfully prepare Au-nanorod cluster structures on optical fiber facets by a laboratory-developed laser-induced evaporation self-assembly method. It is demonstrated that the optimized optical fiber SERS probes show high detection sensitivity (10(-10) M for rhodamine 6G solution, and 10(-8) M for malachite green or crystal violet solution) and excellent reproducibility (relative standard deviation less than 6%). As the laser-induced evaporation self-assembly method is a simple and low-cost method capable of achieving automatic and reproducible preparations of cluster patterned optical fiber SERS probes, this work may find important application prospects in various liquid-phase SERS detection areas. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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