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The optical constants of several atmospheric aerosol species - Ammonium sulfate, aluminum oxide, and sodium chlorideAn investigation is conducted of problems which are related to a use of measured optical constants in the simulation of the optical constants of real atmospheric aerosols. The techniques of measuring optical constants are discussed, taking into account transmission measurements through homogeneous and inhomogeneous materials, the immersion of a material in a liquid of a known refractive index, the consideration of the minimum deviation angle of prism measurement, the interference of multiply reflected light, reflectivity measurements, and aspects of mathematical analysis. Graphs show the real and the imaginary part of the refractive index as a function of wavelength for aluminum oxide, NaCl, and ammonium sulfate. Tables are provided for the dispersion parameters and the optical constants.
Document ID
19770032080
Document Type
Reprint (Version printed in journal)
Authors
Toon, O. B.
(Cornell Univ. Ithaca, NY, United States)
Pollack, J. B.
(NASA Ames Research Center Space Sciences Div., Moffett Field, Calif., United States)
Khare, B. N.
(Cornell University Ithaca, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
November 20, 1976
Publication Information
Publication: Journal of Geophysical Research
Volume: 81
Subject Category
Meteorology And Climatology
Funding Number(s)
CONTRACT_GRANT: NSF ATM-74-20458-A01
CONTRACT_GRANT: NGR-33-010-082
Distribution Limits
Public
Copyright
Other
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