Av. Golubyatnikov et Bz. Katsenelenbaum, LUNEBERG LENS FORMED FROM CUBES - GEOMETRIC-OPTICS CALCULATIONS, Technical physics letters, 24(8), 1998, pp. 611-612
An analysis is made of the focusing by a spherical Luneberg lens compo
sed of discrete dielectric cubes with different permittivities. Geomet
ric-optics calculations are used to determine the degree of focusing o
f rays by a lens consisting of 2600 cubes. It is shown that the degree
of focusing is considerably inferior to that obtained for a continuou
s distribution of epsilon. (C) 1998 American Institute of Physics.