Polarized optical scattering signatures from biological materials

W. E. Martin, E. Hesse, J. H. Hough, W. B. Sparks, C. S. Cockell, Z. Ulanowski, T. A. Germer, P. H. Kaye, Charles Cockell

Research output: Contribution to journalArticlepeer-review

Abstract

The polarization of laser light backscattered from biological samples has been measured over the wavelength range 350-850 nm. Incident circular, linearly polarized, and unpolarized light produces significant spectral features in the case of samples containing chlorophyll such as leaves and cyanobacteria. Polarization scattering signatures are observed around the chlorophyll 'red edge' that may have diagnostic value in the search for life signatures from extrasolar planets. (C) 2010 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2444-2459
Number of pages16
JournalJournal of quantitative spectroscopy & radiative transfer
Volume111
Issue number16
DOIs
Publication statusPublished - Nov 2010

Keywords

  • Circular polarization
  • Chlorophyll red-edge
  • Remote sensing
  • Biomarkers
  • Astrobiology
  • ULTRAVIOLET-RADIATION
  • SPECTRAL SIGNATURES
  • CIRCULAR-DICHROISM
  • MUELLER MATRICES
  • RED EDGE
  • LIGHT
  • PHOTOSYNTHESIS
  • EARTHSHINE
  • LEAF
  • COLONIZATION

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