SERS Raman Sensor Based on Diameter-Modulated Sapphire Fiber

Shimoji, Yutaka

关键词: Chemical sensing;    surface enhanced Raman scattering;    SERS;   

DOI  :  10.2172/984820
RP-ID  :  SC0001588FR
PID  :  OSTI ID: 984820

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Surface enhanced Raman scattering (SERS) has been observed using a sapphire fiber coated with gold nano-islands for the first time. The effect was found to be much weaker than what was observed with a similar fiber coated with silver nanoparticles. Diameter-modulated sapphire fibers have been successfully fabricated on a laser heated pedestal growth system. Such fibers have been found to give a modest increase in the collection efficiency of induced emission. However, the slow response of the SERS effect makes it unsuitable for process control applications.