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Laser-induced time-resolved fluorescence of vegetation

  • G. Schmuck
  • , J. Verdebout
  • , C. Koechler
  • , I. Moya
  • , Y. Goulas
  • European Commission

Résultats de recherche: Contribution à une conférencePapierRevue par des pairs

Résumé

A description is given of time-resolved measurements of the laser-induced chlorophyll fluorescence emission of vegetation detected by two different techniques. Fluorescence decay time measurements using single-photon counting and picosecond laser pulse excitation have been used to analyze the fluorescence heterogeneity of leaves from higher plants. The fluorescence is described by lifetimes of 10-40 ps, 80--150 ps, 400-500 ps, and 700-1000 ps. When the reaction center is closed by application of DCMU, the lifetimes of the slowest components increase by a factor of about 3. Another possible means of monitoring the fluorescence after picosecond excitation is a streak camera detection system. Measurements performed on the slow decay component of stressed and unstressed plants are presented.

langue originaleAnglais
Pages1923-1926
Nombre de pages4
étatPublié - 1 déc. 1990
Modification externeOui
Evénement10th Annual International Geoscience and Remote Sensing Symposium - IGARSS '90 - College Park, MD, USA
Durée: 20 mai 199020 mai 1990

Une conférence

Une conférence10th Annual International Geoscience and Remote Sensing Symposium - IGARSS '90
La villeCollege Park, MD, USA
période20/05/9020/05/90

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