Lagrangian Optics

In this text, the authors begin with Fermat's principle and obtain the Lagrangian and Hamiltonian pictures of ray propagation through various media. The analysi... » 

In this text, the authors begin with Fermat's principle and obtain the Lagrangian and Hamiltonian pictures of ray propagation through various media. The analysis of light propagation in inhomogeneous media is dealt with in great detail. «