From wave theory to ray optics


The aim of this article is to summarize the historical process which led to recovering the concept of a ray, typical of the pre-Maxwell theory of light, from wave theory. To this end, the contributions of Huygens (1690), Newton (1704), Young (1801), and Fresnel (1816), which can be considered the founders of the modern science of optics, are briefly… (More)


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