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physics.class-ph2015
Derivation of the Paraxial Ray Equations in Three Conformal Representations
David Robert Bergman
Acoustic rays can be described by null geodesics of a pseudo-Riemannian manifold. This allows for the immediate generalization of paraxial ray systems via geodesic deviation. The t…
physics.ao-ph2015
Analysis of ray stability and caustic formation in a layered moving fluid medium
David R. Bergman
Caustic formation occurs within a ray skeleton as optical or acoustic fields propagate in a medium with variable refractive properties and are unphysical, their presence being an a…