title: Focusing by small-f-number lenses in the presence of aberrations.
abstract: A method of finding the three-dimensional distribution of light in the focal region of small- f -number lenses that have arbitrary surface curvatures is described. The Fresnel approximation is not used, and the effects of aberration are included. A comparison of the numerical results with experimental measurements for a commercially obtained plano-convex lens is provided.
authors: S
authors: S
authors: Guha