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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 17 — Jun. 10, 2010
  • pp: 3305–3310

Temporally and spatially resolved measurements of the number density of water droplets in an intermittent aerosol

Hidehiko Yashiro, Masayuki Kakehata, and Fumio Sasaki  »View Author Affiliations

Applied Optics, Vol. 49, Issue 17, pp. 3305-3310 (2010)

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Temporally and spatially resolved measurements of the number density of water droplets in an intermittent aerosol were experimentally demonstrated by a laser-induced breakdown technique. The temporal number density distribution is clearly explained by temporal variations in the air pressure at the nozzle caused by an electric valve, the number density of droplets in the steady-state aerosol as a function of air pressure applied to the nozzle, and the steady-state air flow speed as a function of the air pressure applied to the nozzle. The spatial resolutions in the radial and axial directions are also discussed; they were determined from the breakdown threshold intensities of water droplets and air.

© 2010 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(120.1680) Instrumentation, measurement, and metrology : Collimation
(140.3440) Lasers and laser optics : Laser-induced breakdown

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: February 25, 2010
Revised Manuscript: April 23, 2010
Manuscript Accepted: April 30, 2010
Published: June 4, 2010

Hidehiko Yashiro, Masayuki Kakehata, and Fumio Sasaki, "Temporally and spatially resolved measurements of the number density of water droplets in an intermittent aerosol," Appl. Opt. 49, 3305-3310 (2010)

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