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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S1 — Jan. 13, 2014
  • pp: A44–A52

Laser-induced plasma generation and evolution in a transient spray

Nobuyuki Kawahara, Kazuya Tsuboi, and Eiji Tomita  »View Author Affiliations


Optics Express, Vol. 22, Issue S1, pp. A44-A52 (2014)
http://dx.doi.org/10.1364/OE.22.000A44


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Abstract

The behaviors of laser-induced plasma and fuel spray were investigated by visualizing images with an ultra-high-speed camera. Time-series images of laser-induced plasma in a transient spray were visualized using a high-speed color camera. The effects of a shockwave generated from the laser-induced plasma on the evaporated spray behavior were investigated. The interaction between a single droplet and the laser-induced plasma was investigated using a single droplet levitated by an ultrasonic levitator. Two main conclusions were drawn from these experiments: (1) the fuel droplets in the spray were dispersed by the shockwave generated from the laser-induced plasma; and (2) the plasma position may have shifted due to breakdown of the droplet surface and the lens effect of droplets.

© 2013 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3440) Lasers and laser optics : Laser-induced breakdown

History
Original Manuscript: August 23, 2013
Revised Manuscript: October 19, 2013
Manuscript Accepted: October 21, 2013
Published: November 27, 2013

Virtual Issues
Laser Ignition (2013) Optics Express

Citation
Nobuyuki Kawahara, Kazuya Tsuboi, and Eiji Tomita, "Laser-induced plasma generation and evolution in a transient spray," Opt. Express 22, A44-A52 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S1-A44


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