Optical transmission through aerosol deposits on diffusely reflective filters: a method for measuring the absorbing component of aerosol particles

Journal Article · Sun May 01 00:00:00 EDT 1983 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.22.001265· OSTI ID:6079408

Rosen, H; Novakov, T

It is unclear why the backscattered radiation from nonabsorbing particles should not make a significant contribution to the optical attenuation measurement. This is especially true where the absorbing component represents only a very small fraction of the aerosol mass. In this Letter we present a simple theoretical model which accounts for all these observations and points out the critical role of the filter substrate as an almost perfect diffuse reflector in the technique.

• Research Organization: University of California, Lawrence Berkeley Laboratory, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6079408
• Journal Information: Appl. Opt.; (United States), Vol. 22:9
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
54 ENVIRONMENTAL SCIENCES
AEROSOLS
LIGHT TRANSMISSION
MEASURING METHODS
OPACITY
SURFACE COATING
OPTICAL FILTERS
COATINGS
REFLECTIVITY
ABUNDANCE
BACKSCATTERING
CARBON
QUANTITY RATIO
SUBSTRATES
COLLOIDS
DEPOSITION
DISPERSIONS
ELEMENTS
FILTERS
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SCATTERING
SOLS
SURFACE PROPERTIES
657005* - Theoretical Physics- Optics
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)