Realistic Instrumentation Platform for Active and Passive Optical Remote Sensing

Applied Spectroscopy
Mikkel BrydegaardSune Svanberg

Abstract

We describe the development of a novel versatile optical platform for active and passive remote sensing of environmental parameters. Applications include assessment of vegetation status and water quality. The system is also adapted for ecological studies, such as identification of flying insects including agricultural pests. The system is based on two mid-size amateur astronomy telescopes, continuous-wave diode lasers at different wavelengths ranging from violet to the near infrared, and detector facilities including quadrant photodiodes, two-dimensional and line scan charge-coupled device cameras, and a compact digital spectrometer. Application examples include remote Ramanlaser-induced fluorescence monitoring of water quality at 120 m distance, and insect identification at kilometer ranges using the recorded wing beat frequency and its spectrum of overtones. Because of the low cost this developmental platform is very suitable for advanced research projects in developing countries and has, in fact, been multiplied during hands-on workshops and is now being used by a number of groups at African universities.

References

Jun 30, 2006·Vision Research·Anna GislénRonald H H Kröger
Apr 23, 2009·The American Naturalist·Thomas P Gosden, Erik I Svensson
Jul 25, 2005·Optics Express·Joseph ShawJames Wilson
Aug 15, 2009·Applied Spectroscopy·A J Lawaetz, C A Stedmon
Oct 22, 2009·Applied Optics·Mikkel BrydegaardSune Svanberg
Jun 1, 1979·Applied Optics·D A LeonardF E Hoge
Sep 22, 2010·Applied Optics·Zuguang GuanSune Svanberg
Jan 10, 2012·The Review of Scientific Instruments·Mikkel BrydegaardSune Svanberg
Mar 5, 2013·Journal of Biomedical Optics·Aboma MerdasaJeremie T Zoueu

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Methods Mentioned

BETA
optical microscopy
fluorescence imaging
Fluorescence
light scattering
fluorescence spectroscopy
chip

Software Mentioned

Matlab
GNU Octave
DALSA
Alphalas
LuCam
GNU
LabView
QuickCam
MathWorks
Google Earth

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