Abstract

A light scattering instrument capable of routine measurements at angles as low as 9° is described. The reduced scattered intensities can be determined, with use of a vertically polarized incident light, correct to 0.5 ~ 1.0%, unless the scattering of the solution over solvent is less than 10⁻⁵ cm⁻¹. The correction for the back reflection of the incident beam can be ignored because the light is absorbed by a glass neutral filter before it reaches a glass–air interface. A sample liquid can be brought to a temperature equilibrium in less than 30 min, and the temperature can be kept constant within ±0.02°C, in the temperature range from 5°C to 100°C. No special optical specification is required in making a cell, and the geometrical correction is simply given by sin⁻¹θ correct to ±0.7%.

© 1970 Optical Society of America

Low Angle Laser Light Scattering—Absolute Calibration

Wilbur Kaye and A. J. Havlik
Appl. Opt. 12(3) 541-550 (1973)

Photoelectric Light-Scattering Photometer for Determining High Molecular Weights*

B. A. Brice, M. Halwer, and R. Speiser
J. Opt. Soc. Am. 40(11) 768-778 (1950)

Low-Angle Laser Light Scattering—Rayleigh Factors and Depolarization Ratios

Wilbur Kaye and J. B. McDaniel
Appl. Opt. 13(8) 1934-1937 (1974)

Automatic Photometer for Measuring the Angular Dissymmetry of Light Scattering*

F. J. Baum and F. W. Billmeyer
J. Opt. Soc. Am. 51(4) 452-456 (1961)

The Scattering of Polarized Light by Polydisperse Systems of Irregular Particles

A. C. Holland and G. Gagne
Appl. Opt. 9(5) 1113-1121 (1970)