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Stray light correction algorithm for multichannel hyperspectral spectrographs.

M E Feinholz1, S J Flora, S W Brown

  • 1Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, California 95039, USA. feinholz@mlml.calstate.edu

Applied Optics
|June 15, 2012
PubMed
Summary
This summary is machine-generated.

A new algorithm corrects stray light in multichannel hyperspectral spectrographs, improving data accuracy. This method, validated with diverse sources, is the first of its kind for such systems.

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Area of Science:

  • Spectroscopy
  • Optical Engineering
  • Data Calibration

Background:

  • Multichannel spectrographs are susceptible to stray light, which degrades spectral data quality.
  • Accurate spectral measurements are crucial in various scientific disciplines.

Purpose of the Study:

  • To present and validate a novel algorithm for correcting stray light in multichannel fiber-coupled spectrographs.
  • To demonstrate the first application of such a correction algorithm to a multichannel hyperspectral spectrograph.

Main Methods:

  • Characterization measurements using a tunable laser system were performed.
  • The algorithm's efficacy was evaluated using validation measurements with sources of varying spectral distributions.

Main Results:

  • The developed algorithm effectively corrects for stray light in the spectrograph.
  • Validation measurements confirmed the algorithm's performance across different spectral distributions.

Conclusions:

  • The presented algorithm successfully mitigates stray light in multichannel hyperspectral spectrographs.
  • This technique enhances spectral data integrity and can be adapted for imaging systems to correct point-spread response.