Photoacoustic determination of optical properties of aerosol particles collected on filters: development of a method taking into account substrate reflectivity.

Journal Article (Journal Article)

The absorptivity of soot and methylene blue particles collected on Teflon filters is derived from photoacoustic measurements by least squares fitting a simple expression based on Beer's law to the experimental data. Refinements of the expression take into account the diffuse reflection of light by the filter substrate, yielding a base 10 absorptivity at 600 nm for soot of 3.00 +/- 0.37 m(2)/g. This value is in close agreement with the result of transmission measurements performed on the same samples (3.08 +/- 0.05 m(2)/g).

Full Text

Duke Authors

Cited Authors

  • Röhl, R; McClenny, WA; Palmer, RA

Published Date

  • February 1, 1982

Published In

Volume / Issue

  • 21 / 3

Start / End Page

  • 375 - 381

PubMed ID

  • 20372465

Pubmed Central ID

  • 20372465

Electronic International Standard Serial Number (EISSN)

  • 1539-4522

International Standard Serial Number (ISSN)

  • 1559-128X

Digital Object Identifier (DOI)

  • 10.1364/ao.21.000375


  • eng