Gated heterodyne coherent anti-Stokes Raman scattering for high-contrast vibrational imaging

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2005
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Greve, Marco
Bodermann, Bernd
Telle, Harald R.
Riedle, Eberhard
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OSTEN, Wolfgang, ed. and others. Optical measurement systems for industrial inspection IV : 13 - 17 June 2005, Munich, Germany ; Part 1. Bellingham, Wash.: SPIE, 2005, pp. 41-48. Proceedings of SPIE. 5856. ISSN 1817-4035. eISSN 1994-4403. ISBN 0-8194-5856-2. Available under: doi: 10.1117/12.612555
Zusammenfassung

We present a novel detection scheme for coherent anti-Stokes Raman scattering (CARS) which is capable of substantially suppressing coherent background signals which are a basic problem associated with CARS. It exploits the fixed phase relationship between pump, Stokes and CARS fields together with the strong phase coherence in supercontinua generated by femtosecond pulses. Three phase-locked noncollinearly phase-matched optical parametric amplifiers (NOPAs) seeded by a common white-light continuum are used for the realization of a heterodyne signal detection. In combination with proper pulse timing, i.e. appropriately time-delayed probing and heterodyning, a gating mechanism is provided to significantly suppress resonant and nonresonant solvent background signals. Therefore the demonstrated technique is suitable for high-contrast vibrational imaging.

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530 Physik
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Conference OPTICAL METROLOGY, 13. Juni 2005 - 17. Juni 2005, München
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ISO 690GREVE, Marco, Bernd BODERMANN, Harald R. TELLE, Peter BAUM, Eberhard RIEDLE, 2005. Gated heterodyne coherent anti-Stokes Raman scattering for high-contrast vibrational imaging. Conference OPTICAL METROLOGY. München, 13. Juni 2005 - 17. Juni 2005. In: OSTEN, Wolfgang, ed. and others. Optical measurement systems for industrial inspection IV : 13 - 17 June 2005, Munich, Germany ; Part 1. Bellingham, Wash.: SPIE, 2005, pp. 41-48. Proceedings of SPIE. 5856. ISSN 1817-4035. eISSN 1994-4403. ISBN 0-8194-5856-2. Available under: doi: 10.1117/12.612555
BibTex
@inproceedings{Greve2005Gated-52070,
  year={2005},
  doi={10.1117/12.612555},
  title={Gated heterodyne coherent anti-Stokes Raman scattering for high-contrast vibrational imaging},
  number={5856},
  isbn={0-8194-5856-2},
  issn={1817-4035},
  publisher={SPIE},
  address={Bellingham, Wash.},
  series={Proceedings of SPIE},
  booktitle={Optical measurement systems for industrial inspection IV : 13 - 17 June 2005, Munich, Germany ; Part 1},
  pages={41--48},
  editor={Osten, Wolfgang},
  author={Greve, Marco and Bodermann, Bernd and Telle, Harald R. and Baum, Peter and Riedle, Eberhard}
}
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