Reconstruction of a Residual Strain Field in a Crystal-Analyser of a $LLL$-Interferometer
I. M. Fodchuk, S. М. Novikov, I. V. Yaremchuk
Yuriy Fedkovych Chernivtsi National University, 2 Kotsjubynskyi Str., 50012 Chernivtsi, Ukraine
Received: 30.11.2015. Download: PDF
The analysis of influence of magnitude of evenly distributed local concentrated forces, which act parallel to diffraction vector $H$ on the output surface of analyser of $LLL$-interferometer, on the formation of moiré pattern is performed. As shown, the formation of new deformation moiré fringes occurs in the transition by the sign deformation area near concentrated forces; form of moiré fringes reflects total displacement field formed by the row of concentrated forces; decrease of reciprocal value of period of moiré fringes at a distance from a row of concentrated forces reflects the behaviour of the total deformation field.
Key words: $LLL$-interferometer, moiré image, point force, deformation fringes.
PACS: 07.60.Ly, 41.50.+h, 42.30.Ms, 61.05.cp, 61.72.Ff, 87.59.-e
Citation: I. M. Fodchuk, S. М. Novikov, and I. V. Yaremchuk, Reconstruction of a Residual Strain Field in a Crystal-Analyser of a $LLL$-Interferometer, Metallofiz. Noveishie Tekhnol., 38, No. 3: 389—403 (2016) (in Russian)