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Proceedings Paper

Applications of laser-induced fluorescence for remote sensing
Author(s): Hristo A. Hristov; Ekaterina G. Borisova; Lachezar A. Avramov; Ivan N. Kolev
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Paper Abstract

Recent experiments conducted using a ground-based lidar have shown that laser-induced fluorescence spectral emissions from green plants are detectable from a remote platform. A pulsed Nd-YAG laser emitting at 532 nm was used as an excitation source. The fluorescence maxima in Populus tree were found to be at 685 nm and 740 nm. An increase of the ratio 685/740 nm between the intensity maxima of the fluorescence spectra was observed for that tree in the case of water stress. The morphological differences or difference in the photosynthetic properties between the two sides of the leaves cause differences between the ratios of the intensity maxima at 685 nm and 740 nm of the fluorescence spectra observed in cases of different geometries of measurement during the laboratory study.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425192
Show Author Affiliations
Hristo A. Hristov, Institute of Electronics (Bulgaria)
Ekaterina G. Borisova, Institute of Electronics (Bulgaria)
Lachezar A. Avramov, Institute of Electronics (Bulgaria)
Ivan N. Kolev, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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