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Inelastic hyperspectral lidar for profiling aquatic ecosystems

  • Guangyu Zhao
  • Mikael Ljungholm
  • Elin Malmqvist
  • Giuseppe Bianco
  • Lars Anders Hansson
  • Sune Svanberg
  • Mikkel Brydegaard
Publishing year: 2016-09-01
Language: English
Pages: 807-813
Publication/Series: Laser and Photonics Reviews
Volume: 10
Issue: 5
Document type: Journal article
Publisher: John Wiley & Sons

Abstract english

Monitoring the aquatic environment and the life of free-floating organisms remains on the borderline of our technical capabilities. Therefore, our insights into aquatic habitats, such as, abundance and behavior of organisms are limited. In order to improve our understanding of aquatic life, we have developed a low-cost inelastic hyperspectral lidar with unlimited focal depth and enough sensitivity and spatiotemporal resolution to detect and resolve position and behavior of individual submillimeter organisms. In this work, we demonstrate elastic as well as molecular ranging by using the water Raman band, and by observing fluorescence from chlorophyll and from dye-tagged organisms. We present an aquatic laser-diode-based inelastic light detection and ranging (lidar) system with unprecedented sensitivity, spatiotemporal resolution and number of spectral bands. Our system offers new opportunities for quantitative in situ studies of aquatic organisms, and has the potential to considerably advance our understanding of biological life in aquatic systems. (Figure presented.).


  • Atom and Molecular Physics and Optics
  • Biological Sciences
  • aquatic lidar
  • fluorescence lidar
  • hyperspectral lidar
  • Inelastic lidar
  • lidar
  • Scheimpflug lidar


  • ISSN: 1863-8880
Mikkel Brygdegaard
E-mail: mikkel [dot] brydegaard [at] forbrf [dot] lth [dot] se

Associate senior lecturer

Combustion Physics

+46 46 222 76 57



Centre for Animal Movement Research
Evolutionary Ecology, Department of Biology
Ecology building S-223 62 Lund Sweden