PHYSICS

Holographic interferometry of dynamic periodic structures in real time

N. T. Avlasevich, A. M. Lyalikov

Y. Kupala Grodno State University

Abstract: A method of recording and subsequent restoration of a hologram of transmissive periodic structures by light waves diffracted directly on the structure under study is proposed. It is shown that the use of such a reference hologram allows reconstructing the interference patterns that reflect the behavior of the structure parameters in time. The experimental results of testing the proposed method in the study of the dynamics of two-dimensional periodic structures in real time are presented.

Keywords: dynamic periodic structure, light wave, hologram, holographic interferometry, visualization of defect, interference pattern.

UDC: 535.4

Received: 03.01.2019