Off-campus South Dakota State University users: To download campus access theses, please use the following link to log into our proxy server with your South Dakota State University ID and password.
Non-South Dakota State University users: Please talk to your librarian about requesting this thesis through interlibrary loan.
Thesis - University Access Only
Master of Science (MS)
Electrical Engineering and Computer Science
Vegetation health is of great importance due to several factors, such as desired crop production and maintaining a balanced ecosystem for the planet earth, etc. Some research was carried out in the 1990s to differentiate among different physiological conditioned leaves by means of florescence LIDAR technology. But polarimetric laser measurement was never applied for the purpose of vegetation health condition detection. In this research, we have used polarimetric laser to differentiate among different physiological conditioned leaves. In order to do that, Stokes parameters of maple leaves along with cottonwood leaves of various natural colors were measured and the result shows that these different colored leaves of the same species have distinct depolarization and degree of polarization pattern i.e., yellow maple leaves show the most depolarization, whereas red maple show the least and the red maple leaves show the most degree of polarization whereas, yellow maple leaves show the least. For cottonwood, yellow leaves also show higher depolarization and lower degree of polarization compared to green leaves. This research successfully used polarimetric laser to differentiate among fresh and drying leaves. Leaves from five different species-‐ Lilac, Cottonwood, poinsettia,weeping fig, and money plant leaves were used to measure Stokes parameters. The result shows that as the leaves dry up their depolarization ratios tend to go up. The aspect of this research demonstrates that the polarimetric laser measurement of plant leaves is a brand new method for identifying physiological conditions of vegetation.
Library of Congress Subject Headings
Leaves -- Physiology
Includes bibliographical references (pages 79-83)
Number of Pages
South Dakota State University
In Copyright - Non-Commercial Use Permitted
Khan, A.S.M Shariar Kabir, "Polarimetric Laser Measurement of Plant Leaves Under Different Physiological Conditions" (2014). Electronic Theses and Dissertations. 2014.