A Simplified Hollow-Core Photonic Crystal Fiber SERS Probe with a Fully Filled Photoreduction Silver Nanoprism.
Youfu GengYiwen XuXiaoling TanLina WangXuejin LiYu DuXueming HongPublished in: Sensors (Basel, Switzerland) (2018)
In this paper, a simplified hollow-core photonic crystal fiber surface-enhanced Raman scattering (SERS) probe is presented. Silver nanoprisms are grown with a photoreduction method and account for the SERS, which have better electromagnetic enhancement than spherical silver nanoparticles at 785 nm. Due to the antiresonant reflecting guidance mechanism, the excited laser and SERS signal are effectively guided in such a fully filled hollow-core photonic crystal fiber SERS probe and complicated selective filling with target sample is avoided. Rhodamine 6G molecules are used as probe molecules and the simplified hollow-core photonic crystal fiber SERS probe is test. Detection of low concentration Rhodamine 6G down to 10-8 M is achieved with a short integration time of 300 ms.
Keyphrases
- gold nanoparticles
- sensitive detection
- quantum dots
- silver nanoparticles
- living cells
- raman spectroscopy
- high speed
- fluorescent probe
- label free
- molecularly imprinted
- loop mediated isothermal amplification
- mass spectrometry
- multiple sclerosis
- highly efficient
- photodynamic therapy
- high resolution
- energy transfer
- simultaneous determination