Properties of optical ducts, their chromatism and its effects on astronomical refraction
Optics
2023-11-06 v2 Instrumentation and Methods for Astrophysics
Abstract
The fundamental quadrature governing light rays in a spherically symmetrical medium is first recalled. A rigorous discussion of some qualitative properties of its solutions follows, using the Young-Kattawar diagram which leads to a geometric formulation of the ray curvature. The case of an optical duct is deepened, analyzing transfer curves for different positions of the observer with respect to the duct. New analytical expressions for their wavelength dependence are derived, and their numerical consequences are coherent with computer simulations.
Keywords
Cite
@article{arxiv.2204.02605,
title = {Properties of optical ducts, their chromatism and its effects on astronomical refraction},
author = {Luc Dettwiller},
journal= {arXiv preprint arXiv:2204.02605},
year = {2023}
}
Comments
in French language