Tip-Enhanced Raman Spectroscopy with High-Order Fiber Vector Beam Excitation.

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ID: 93792
2018
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Abstract
We investigated tip-enhanced Raman spectra excited by high-order fiber vector beams. Theoretical analysis shows that the high-order fiber vector beams have stronger longitudinal electric field components than linearly polarized light under tight focusing conditions. By introducing the high-order fiber vector beams and the linearly polarized beam from a fiber vector beam generator based on an electrically-controlled acoustically-induced fiber grating into a top-illumination tip-enhanced Raman spectroscopy (TERS) setup, the tip-enhanced Raman signal produced by the high-order fiber vector beams was 1.6 times as strong as that produced by the linearly polarized light. This result suggests a new type of efficient excitation light beams for TERS.
Reference Key
lu2018tipenhancedsensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lu, Fanfan;Huang, Tengxiang;Han, Lei;Su, Haisheng;Wang, Heng;Liu, Min;Zhang, Wending;Wang, Xiang;Mei, Ting;
Journal sensors
Year 2018
DOI
E3841
URL
Keywords
fiber vector beam field enhancement tip-enhanced raman spectroscopy

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