Infrared and visible Fourier-transform spectra of sulfuric-acid-water aerosols at 230 and 294 K

被引：15

作者：

Heathfield, AE

Newnham, DA

Ballard, J

Grainger, RG

Lambert, A

机构：

[1] Rutherford Appleton Lab, Dept Space Sci, Didcot OX11 0QX, Oxon, England

[2] Univ Oxford, Clarendon Lab, Dept Atmospher Ocean & Planetary Phys, Oxford OX1 3PU, England

来源：

APPLIED OPTICS | 1999年 / 38卷 / 30期

关键词：

D O I：

10.1364/AO.38.006408

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The extinction spectra of aqueous sulfuric acid aerosols fully covering the mid-IR to visible regions from 750 to 23,000 cm(-1) (13.9-0.4 mu m) have been measured in the laboratory with a Fourier-transform spectrometer. Both large and small aerosol particles with compositions of approximately 60-70-wt.% H2SO4 were generated and their spectra recorded at 230 and 294 K. The spectra were fitted to a model incorporating roam-temperature refractive-index data [Appl. Opt. 14, 208 (1975)] and Mie theory calculations to characterize the composition and size distributions of the aerosol samples. (C) 1999 Optical Society of America.

引用

收藏

页码：6408 / 6420

页数：13

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