Background free CARS imaging by local phase detection

@inproceedings{Jurna2009BackgroundFC,
  title={Background free CARS imaging by local phase detection},
  author={Martin Jurna and Jeroen P. Korterik and Cees Otto and Luana Herek and Herman L. Offerhaus},
  booktitle={BiOS},
  year={2009}
}
In this article we show that heterodyne CARS, based on a controlled and stable phase-preserving chain, can be used to measure amplitude and phase information of molecular vibration modes. The technique is validated by a comparison of the imaginary part of the heterodyne CARS spectrum to the spontaneous Raman spectrum of polyethylene. The detection of the phase allows for rejection of the non-resonant background from the data. The resulting improvement of the signal to noise ratio is shown by… CONTINUE READING

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