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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 33 — Nov. 20, 1996
  • pp: 6585–6598

Three-dimensional radiation transfer modeling in a dicotyledon leaf

Yves M. Govaerts, Stéphane Jacquemoud, Michel M. Verstraete, and Susan L. Ustin  »View Author Affiliations


Applied Optics, Vol. 35, Issue 33, pp. 6585-6598 (1996)
http://dx.doi.org/10.1364/AO.35.006585


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Abstract

The propagation of light in a typical dicotyledon leaf is investigated with a new Monte Carlo ray-tracing model. The three-dimensional internal cellular structure of the various leaf tissues, including the epidermis, the palisade parenchyma, and the spongy mesophyll, is explicitly described. Cells of different tissues are assigned appropriate morphologies and contain realistic amounts of water and chlorophyll. Each cell constituent is characterized by an index of refraction and an absorption coefficient. The objective of this study is to investigate how the internal three-dimensional structure of the tissues and the optical properties of cell constituents control the reflectance and transmittance of the leaf. Model results compare favorably with laboratory observations. The influence of the roughness of the epidermis on the reflection and absorption of light is investigated, and simulation results confirm that convex cells in the epidermis focus light on the palisade parenchyma and increase the absorption of radiation.

© 1996 Optical Society of America

History
Original Manuscript: November 17, 1995
Revised Manuscript: April 30, 1996
Published: November 20, 1996

Citation
Yves M. Govaerts, Stéphane Jacquemoud, Michel M. Verstraete, and Susan L. Ustin, "Three-dimensional radiation transfer modeling in a dicotyledon leaf," Appl. Opt. 35, 6585-6598 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-33-6585

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