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Applied Optics

Applied Optics


  • Vol. 38, Iss. 9 — Mar. 20, 1999
  • pp: 1523–1529

Fast in situ sizing technique for single levitated liquid aerosols

Björn Steiner, Burkhard Berge, Ralf Gausmann, Jens Rohmann, and Eckart Rühl  »View Author Affiliations

Applied Optics, Vol. 38, Issue 9, pp. 1523-1529 (1999)

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A fast in situ sizing technique for single levitated aerosol particles is presented. It makes use of the analysis of fast-Fourier-transformed vertically polarized Mie scattering patterns from single liquid aerosols levitated in a Paul-trap-type electrodynamic balance. The technique is shown to give reliable results for a test sphere of known physical properties. A first application to aqueous sodium chloride aerosol particles that changed size on humidity variation is presented, yielding good agreement with the full Mie theory.

© 1999 Optical Society of America

OCIS Codes
(010.1110) Atmospheric and oceanic optics : Aerosols
(070.2590) Fourier optics and signal processing : ABCD transforms
(070.5010) Fourier optics and signal processing : Pattern recognition
(290.4020) Scattering : Mie theory
(290.5820) Scattering : Scattering measurements

Original Manuscript: April 10, 1998
Revised Manuscript: October 20, 1998
Published: March 20, 1999

Björn Steiner, Burkhard Berge, Ralf Gausmann, Jens Rohmann, and Eckart Rühl, "Fast in situ sizing technique for single levitated liquid aerosols," Appl. Opt. 38, 1523-1529 (1999)

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