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Index-guiding liquid-core photonic crystal fiber for solution measurement using normal and surface-enhanced Raman scattering

机译:折射率引导液芯光子晶体光纤,用于使用法向和表面增强拉曼散射进行溶液测量

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摘要

We have explored the use of index-guiding liquid-core (LC) photonic crystal fiber (PCF) as a robust platform for measurements of solutions of trace volume using normal and surface-enhanced Raman scattering (SERS). The LC PCF was fabricated by selectively sealing the cladding air channels at the distal ends of a hollow-core PCF while leaving the center core open, using a fusion splicer. Utilizing a 30-cm-long LC PCF with the entire center core filled with the ~0.1-μL solution of interest, we have obtained normal Raman spectra of water, ethanol, and 1 vol% ethanol in water. Sensitive and reproducible SERS detection of 1.7 × 10~(-7) M thiocyanate anions (≈14 ppb of NaSCN) in water has also been achieved.
机译:我们已经探索了使用折射率引导液芯(LC)光子晶体光纤(PCF)作为使用正常和表面增强拉曼散射(SERS)测量痕量溶液的可靠平台。通过使用熔接机选择性地密封空心PCF末端的包层空气通道,同时保持中心纤芯敞开,从而制造LC PCF。使用一个30 cm长的LC PCF,整个中心核填充有〜0.1μL感兴趣的溶液,我们获得了水,乙醇和1vol%乙醇在水中的正常拉曼光谱。还实现了水中1.7×10〜(-7)M硫氰酸根阴离子(NaSCN≈14 ppb)的灵敏且可重现的SERS检测。

著录项

  • 来源
    《Optical engineering》 |2008年第4期|040502.1-040502.3|共3页
  • 作者单位

    Stevens Institute of Technology, Department of Chemical, Biomedical and Materials Engineering, Hoboken, New Jersey 07030;

    Stevens Institute of Technology, Department of Chemical, Biomedical and Materials Engineering, Hoboken, New Jersey 07030;

    Stevens Institute of Technology, Department of Chemical, Biomedical and Materials Engineering, Hoboken, New Jersey 07030;

    The Hong Kong Polytechnic University, Department of Electrical Engineering, Kowloon, Hong Kong;

    The Hong Kong Polytechnic University, Department of Electrical Engineering, Kowloon, Hong Kong;

    The Hong Kong Polytechnic University, Department of Electrical Engineering, Kowloon, Hong Kong;

    Stevens Institute of Technology, Department of Chemical, Biomedical and Materials Engineering, Hoboken, New Jersey 07030;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    index-guiding liquid-core photonic crystal fiber; hollow-core photonic crystal fiber; raman scattering; surface-enhanced raman scattering; sensing; detection;

    机译:折射率引导液芯光子晶体光纤;中空光子晶体光纤;拉曼散射表面增强拉曼散射感应检测;

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