• français
    • English
    English
  • Ouvrir une session
Aide
Voir le document 
  •   Accueil de SAM
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • Voir le document
  • Accueil de SAM
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • Voir le document
JavaScript is disabled for your browser. Some features of this site may not work without it.

Approximate analytical effective phase function obtained for a thin slab geometry

Article dans une revue avec comité de lecture
Auteur
VAUDELLE, Fabrice
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

URI
http://hdl.handle.net/10985/17255
DOI
10.1016/j.jqsrt.2017.03.016
Date
2017
Journal
Journal of Quantitative Spectroscopy and Radiative Transfer

Résumé

The reflection and transmission of light from a slab containing a turbid medium provide a scattering effective phase function from which the true optical anisotropy factor may not be always easily retrieved. From the statistical Poissonian theory and thanks to approximations about the optical path related to the first scattering events, a simplified relationship is established between angular phase function and effective phase function. Therefore, with a modified Gegenbauer or a Two-Terms Henyey-Greenstein phase function, some adjustable analytic functions are proposed in order to fit the measurements linked to the true effective phase function. An efficiency of the approximate analytical function is proved, thanks to the light modelling by Monte Carlo method, for optical thickness lower or equal to 2. This is confirmed by comparisons of the anisotropy retrieval with other methods. Concerning applications, several fits were made on experimental effective phase functions corresponding to goniometric measurements from usual diffusing materials and biological tissues.

Fichier(s) constituant cette publication

Nom:
LAMPA_JQSRT_2017_VAUDELLE.pdf
Taille:
1.404Mo
Format:
PDF
Voir/Ouvrir

Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Influence of the size and skin thickness of apple varieties on the retrieval of internal optical properties using Vis/NIR spectroscopy: A Monte Carlo-based study 
    Article dans une revue avec comité de lecture
    VAUDELLE, Fabrice; L'HUILLIER, Jean-Pierre (Elsevier, 2015)
    Visible/near-infrared spectroscopy is a well-established method to measure optical properties of tissues, assuming that a light propagation model can be used to recover absorption and reduced scattering coefficients from ...
  • Time-resolved optical fluorescence spectroscopy of heterogeneous turbid media with special emphasis on brain tissue structures including diseased regions: A sensitivity analysis 
    Article dans une revue avec comité de lecture
    VAUDELLE, Fabrice; L'HUILLIER, Jean-Pierre (Elsevier, 2013)
    Fluorescence-enhanced optical imaging based on near-infrared light provides a promising tool to differentiate diseased lesions from normal tissue. However, the measurement sensitivity of the fluorescence signals acquired ...
  • Light source distribution and scattering phase function influence light transport in diffuse multi-layered media 
    Article dans une revue avec comité de lecture
    VAUDELLE, Fabrice; L'HUILLIER, Jean-Pierre; ASKOURA, Mohamed Lamine (Elsevier, 2017)
    Red and near-Infrared light is often used as a useful diagnostic and imaging probe for highly scattering media such as biological tissues, fruits and vegetables. Part of diffusively reflected light gives interesting information ...
  • Experimental Study of Light Propagation in Apple Tissues Using a Multispectral Imaging System 
    Article dans une revue avec comité de lecture
    ASKOURA, Mohamed Lamine; VAUDELLE, Fabrice; L'HUILLIER, Jean-Pierre (MDPI, 2016)
    This work aimed at high lighting the role played by the skin in the light propagation through the apple flesh. A multispectral Visible-Near Infrared (Vis-NIR) steady-state imaging setup based on the use of four continuous ...
  • Multispectral measurement of scattering-angular light distribution in apple skin and flesh samples 
    Article dans une revue avec comité de lecture
    ASKOURA, Mohamed Lamine; VAUDELLE, Fabrice; L'HUILLIER, Jean-Pierre (Optical Society of America, 2016)
    Knowledge of the optical properties of apple tissues such as skin and flesh is essential to better understand the light–tissue interaction process and to apply optical methods for apple quality inspection. This work aimed ...

Parcourir

Tout SAMLaboratoiresAuteursDates de publicationCampus/InstitutsCe LaboratoireAuteursDates de publicationCampus/Instituts

Lettre Diffuser la Science

Dernière lettreVoir plus

Statistiques de consultation

Publications les plus consultéesStatistiques par paysAuteurs les plus consultés

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales