Integrated Waveguide Probes as Alternatives to Fiber-Optic Probes for Backscattering and Fluorescence Measurements

  • Nur Ismail
  • Fei Sun
  • Fehmi Civitci
  • Kerstin Wörhoff
  • René M. De Ridder
  • Markus Pollnau
  • Alfred Driessen
Conference paper
Part of the NATO Science for Peace and Security Series B: Physics and Biophysics book series (NAPSB)

Abstract

Integrated optical probes for detecting backscattered light (i.e. in Raman spectroscopy) show desirable characteristics when compared to conventional fiber probes despite the fact that the latter generally present better collection efficiencies. The major advantages of integrated probes are the reduced size; reduced background noise due to scattering in the probe because of reduced propagation length; potential for monolithic integration with filters, spectrometers and detectors; very small collection volumes, providing high spatial resolution; and polarization maintenance. In our work we demonstrated that in a practically relevant case where scattered light needs to be collected from a thin layer at the samples surface, integrated probes have better collection efficiency than fiber probes do.

Keywords

Raman Spectroscopy Monte Carlo Model Fiber Probe Backscatter Light Multimode Fiber 
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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Nur Ismail
    • 1
  • Fei Sun
    • 1
  • Fehmi Civitci
    • 1
  • Kerstin Wörhoff
    • 1
  • René M. De Ridder
    • 1
  • Markus Pollnau
    • 1
  • Alfred Driessen
    • 1
  1. 1.Integrated Optical MicroSystems group (IOMS)University of TwenteEnschedeThe Netherlands

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