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Continuous-wave differential absorption lidar

Mei, Liang LU and Brydegaard, Mikkel LU (2015) In Laser & Photonics Reviews 9(6). p.629-636
Abstract
This work proves the feasibility of a novel concept of differential absorption lidar based on the Scheimpflug principle. The range-resolved atmospheric backscattering signal of a laser beam is retrieved by employing a tilted linear sensor with a Newtonian telescope, satisfying the Scheimpflug condition. Infinite focus depth is achieved despite employing a large optical aperture. The concept is demonstrated by measuring the range-resolved atmospheric oxygen concentration with a tunable continuous-wave narrow-band laser diode emitting around 761 nm over a path of one kilometer during night time. Laser power requirements for daytime operation are also investigated and validated with single-band atmospheric aerosol measurements by employing a... (More)
This work proves the feasibility of a novel concept of differential absorption lidar based on the Scheimpflug principle. The range-resolved atmospheric backscattering signal of a laser beam is retrieved by employing a tilted linear sensor with a Newtonian telescope, satisfying the Scheimpflug condition. Infinite focus depth is achieved despite employing a large optical aperture. The concept is demonstrated by measuring the range-resolved atmospheric oxygen concentration with a tunable continuous-wave narrow-band laser diode emitting around 761 nm over a path of one kilometer during night time. Laser power requirements for daytime operation are also investigated and validated with single-band atmospheric aerosol measurements by employing a broad-band 3.2-W laser diode. The results presented in this work show the potential of employing the continuous-wave differential absorption lidar (CW-DIAL) technique for remote profiling of atmospheric gases in daytime if high-power [GRAPHICS] narrow-band continuous-wave light sources were to be employed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Differential absorption lidar, atmospheric gas sensing, Scheimpflug, principle, oxygen, laser diode
in
Laser & Photonics Reviews
volume
9
issue
6
pages
629 - 636
publisher
John Wiley & Sons
external identifiers
  • wos:000368255200005
  • scopus:84959358677
ISSN
1863-8880
DOI
10.1002/lpor.201400419
language
English
LU publication?
yes
id
710eb1d7-e1a6-4f1d-b94c-9a8bbd3610d2 (old id 8754508)
date added to LUP
2016-02-23 07:56:51
date last changed
2017-10-22 03:22:35
@article{710eb1d7-e1a6-4f1d-b94c-9a8bbd3610d2,
  abstract     = {This work proves the feasibility of a novel concept of differential absorption lidar based on the Scheimpflug principle. The range-resolved atmospheric backscattering signal of a laser beam is retrieved by employing a tilted linear sensor with a Newtonian telescope, satisfying the Scheimpflug condition. Infinite focus depth is achieved despite employing a large optical aperture. The concept is demonstrated by measuring the range-resolved atmospheric oxygen concentration with a tunable continuous-wave narrow-band laser diode emitting around 761 nm over a path of one kilometer during night time. Laser power requirements for daytime operation are also investigated and validated with single-band atmospheric aerosol measurements by employing a broad-band 3.2-W laser diode. The results presented in this work show the potential of employing the continuous-wave differential absorption lidar (CW-DIAL) technique for remote profiling of atmospheric gases in daytime if high-power [GRAPHICS] narrow-band continuous-wave light sources were to be employed.},
  author       = {Mei, Liang and Brydegaard, Mikkel},
  issn         = {1863-8880},
  keyword      = {Differential absorption lidar,atmospheric gas sensing,Scheimpflug,principle,oxygen,laser diode},
  language     = {eng},
  number       = {6},
  pages        = {629--636},
  publisher    = {John Wiley & Sons},
  series       = {Laser & Photonics Reviews},
  title        = {Continuous-wave differential absorption lidar},
  url          = {http://dx.doi.org/10.1002/lpor.201400419},
  volume       = {9},
  year         = {2015},
}