K. Eichhorn et C. Sinn, SUPPRESSION OF THE SPECKLE NOISE IN SOLID POLYMER SAMPLES - A LIGHT-SCATTERING STUDY, Optical engineering, 33(10), 1994, pp. 3368-3371
The speckle effect disturbs the measurement of spatial correlation fun
ctions in solid polymer samples by light scattering. To be able to ext
ract the desired correlations from the measurements, the speckle noise
must be suppressed. This is possible by moving the sample during the
measurement. In this paper we demonstrate that a sufficient reduction
of speckle contrast can be achieved even in samples of restricted dime
nsions or with a preferential direction.