Multiband modulation spectroscopy for the determination of sex and species of mosquitoes in flight

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

We present a dual-wavelength polarimetric measurement method to distinguish species and sexes of disease transmitting mosquitoes in flight. By measuring co- and de-polarized backscattered light at 808 and 1550nm, the degree of linear polarization, wingbeat frequency, reflectance, spectral ratio and glossiness of mosquitoes can be retrieved. Body and wing contributions to these signals can be separated. Whereas the optical cross section is sensitive to the aspect of observation, thus the heading direction of the insect in flight, we demonstrate that polarimetric- and spectral-band ratios are largely invariant to the aspect of observation. We show that wing glossiness, as well as wing- and body-spectral ratios are particularly efficient in distinguishing Anopheles coluzzii and Anopheles arabiensis, 2 closely related species of malaria vectors. Spectral and polarimetric ratios relate to microstructural and melanization features of the wing and body of these species. We conclude that multiband modulation spectroscopy is a useful expansion of the parameter space that can be used to improve the specificity of entomological lidars.

Detaljer

Författare
  • Alem Gebru
  • Samuel Jansson
  • Rickard Ignell
  • Carsten Kirkeby
  • Jord C. Prangsma
  • Mikkel Brydegaard
Enheter & grupper
Externa organisationer
  • Technical University of Denmark
  • FaunaPhotonics ApS
  • Lund University
  • Swedish University of Agricultural Sciences, Alnarp
  • Norsk Elektro Optikk AS
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
  • Zoologi

Nyckelord

Originalspråkengelska
Artikelnummere201800014
TidskriftJournal of Biophotonics
Volym11
Utgåva nummer8
Tidigt onlinedatum2018 apr 16
StatusPublished - 2018
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Samuel Jansson, 2020 jan 21, Lund: Department of Physics, Lund University. 297 s.

Forskningsoutput: AvhandlingDoktorsavhandling (sammanläggning)

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