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Femtosecond-laser electronic-excitation tagging velocimetry using a 267 nm laser

Gao, Qiang LU ; Zhang, Dayuan; Li, Xiaofeng; Li, Bo LU and Li, Zhongshan LU (2019) In Sensors and Actuators, A: Physical 287. p.138-142
Abstract

Femtosecond (fs)-laser electronic-excitation tagging velocimetry (FLEET) in a nitrogen flow field using a 267 nm laser was performed under the condition of fs-laser filamentation. The filamentous properties and their effects on velocity measurements were investigated and were compared with those of an 800 nm fs-laser. The results show that the required energy of the 267 nm laser pulse is as low as hundreds of μJ, and this is beneficial for reducing the potential perturbations to the flow flied. The filaments induced by the 267 nm laser are longer and thinner than are those induced by the 800 nm laser, which enlarges the velocity measurements region, and a precision of 1.3% was achieved.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Femtosecond laser, Laser filamentantion, Velocity
in
Sensors and Actuators, A: Physical
volume
287
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:85060112384
ISSN
0924-4247
DOI
10.1016/j.sna.2019.01.004
language
English
LU publication?
yes
id
de607943-285c-44d8-90ea-1e8ea583d514
date added to LUP
2019-01-28 12:21:08
date last changed
2019-02-20 11:44:36
@article{de607943-285c-44d8-90ea-1e8ea583d514,
  abstract     = {<p>Femtosecond (fs)-laser electronic-excitation tagging velocimetry (FLEET) in a nitrogen flow field using a 267 nm laser was performed under the condition of fs-laser filamentation. The filamentous properties and their effects on velocity measurements were investigated and were compared with those of an 800 nm fs-laser. The results show that the required energy of the 267 nm laser pulse is as low as hundreds of μJ, and this is beneficial for reducing the potential perturbations to the flow flied. The filaments induced by the 267 nm laser are longer and thinner than are those induced by the 800 nm laser, which enlarges the velocity measurements region, and a precision of 1.3% was achieved.</p>},
  author       = {Gao, Qiang and Zhang, Dayuan and Li, Xiaofeng and Li, Bo and Li, Zhongshan},
  issn         = {0924-4247},
  keyword      = {Femtosecond laser,Laser filamentantion,Velocity},
  language     = {eng},
  pages        = {138--142},
  publisher    = {Elsevier},
  series       = {Sensors and Actuators, A: Physical},
  title        = {Femtosecond-laser electronic-excitation tagging velocimetry using a 267 nm laser},
  url          = {http://dx.doi.org/10.1016/j.sna.2019.01.004},
  volume       = {287},
  year         = {2019},
}