Oblique scattering of light in gases and liquids

Abstract

Oblique scattering of sunlight in gases and liquids.-(1) Theoretical variation with angle. The scattered light is assumed to consist of an unpolarized part whose intensity is the same in all directions and a polarized part whose intensity varies as (1+cos²θ). This leads to simple equations for the ratio of the two components and for the total intensity for various angles, which are found to agree within 5 per cent with the (2) experimental results for carbon dioxide and for dust-free toluene, benzene and ether. The observed ratios of the intensity for Φ=45° to that for Φ=90° , are 1.91, 1.79, 1.71 and 2.12 respectively; the observed ratios of the components for Φ=90° are.102,.52,.48 and.084 respectively. For carbon disulphide the observed ratio is.704.