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New developments in planar array infrared spectroscopy.

Isabelle Pelletier1, Christian Pellerin, D Bruce Chase

  • 1Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, USA.

Applied Spectroscopy
|February 22, 2005
PubMed
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New planar array infrared (PA-IR) spectroscopy methods enhance spectral range and correct image curvature. This dual-beam instrument enables real-time background correction for improved infrared analysis.

Area of Science:

  • Spectroscopy
  • Infrared Spectroscopy
  • Analytical Chemistry

Background:

  • Planar array infrared (PA-IR) spectrographs offer high acquisition rates and sensitivity.
  • Existing PA-IR instruments face limitations in spectral range and image curvature.
  • Addressing these drawbacks is crucial for advancing PA-IR applications.

Purpose of the Study:

  • To develop and refine methods for correcting spectral image curvature in PA-IR spectroscopy.
  • To design a dual-beam instrument for simultaneous spectral image recording.
  • To extend the accessible spectral range of PA-IR spectrographs.

Main Methods:

  • Implementation of a refined data processing method for curvature correction.
  • Development of a dual-beam instrument for simultaneous data acquisition.

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  • Integration of these advancements to achieve real-time background correction.

    • Main Results:

    • Successful correction of spectral image curvature in PA-IR spectrographs.
    • Demonstration of real-time background correction capabilities using the dual-beam instrument.
    • Extension of the spectral range to cover methylene stretching and fingerprint regions simultaneously.

    Conclusions:

    • The developed methods and instrument overcome key limitations of PA-IR spectroscopy.
    • PA-IR instruments can now provide corrected spectral images with an extended spectral range.
    • These advancements enhance the utility and applicability of PA-IR spectroscopy.