Optical design of two-reflector systems, the Monge-Kantorovich mass transfer problem and Fermat's principle
arXiv:math/0303388
Abstract
It is shown that the problem of designing a two-reflector system transforming a plane wave front with given intensity into an output plane front with prescribed output intensity can be formulated and solved as the Monge-Kantorovich mass transfer problem.
25 pages, 2 figures