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

Gebru, Alem; Jansson, Samuel LU ; Ignell, Rickard LU ; Kirkeby, Carsten; Prangsma, Jord C. and Brydegaard, Mikkel LU (2018) In Journal of Biophotonics
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... (More)

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.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Disease vectors, Entomological lidar, Modulation spectroscopy, Species classification, Wing interference patterns
in
Journal of Biophotonics
publisher
John Wiley & Sons
external identifiers
  • scopus:85045407808
ISSN
1864-063X
DOI
10.1002/jbio.201800014
language
English
LU publication?
yes
id
97e99724-9746-472e-8127-e799c40f90a4
date added to LUP
2018-04-24 15:17:42
date last changed
2018-09-16 04:54:50
@article{97e99724-9746-472e-8127-e799c40f90a4,
  abstract     = {<p>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.</p>},
  author       = {Gebru, Alem and Jansson, Samuel and Ignell, Rickard and Kirkeby, Carsten and Prangsma, Jord C. and Brydegaard, Mikkel},
  issn         = {1864-063X},
  keyword      = {Disease vectors,Entomological lidar,Modulation spectroscopy,Species classification,Wing interference patterns},
  language     = {eng},
  month        = {04},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Biophotonics},
  title        = {Multiband modulation spectroscopy for the determination of sex and species of mosquitoes in flight},
  url          = {http://dx.doi.org/10.1002/jbio.201800014},
  year         = {2018},
}