Mm. Elnicklawy et al., AN ANALYSIS OF FIZEAU FRINGES CROSSING FIBERS WITH DIFFERENT SKIN-CORE TRANSVERSE SECTIONS, Polymer testing, 16(1), 1997, pp. 33-42
Mathematical expressions for Fizeau fringes crossing fibres with an un
usual, irregular skin-core cross-section are derived. Firstly, for a f
ibre of a circular cross-section with a shifted elliptical core apart
from its center and secondly, for a fibre of elliptical cross-section
with a shifted circular core apart from its center. These expressions
lead to the determination of refractive indices and birefringence for
fibres having these special structures. (C) 1996. Published by Elsevie
r Science Ltd