Method for Increasing the Aperture of Space Focusing Lenses.

摘要

There are limitations in the aperture achievable from the use of molecular beam space focusing lenses. It is shown that by a system of lenses in series (or by a lens with a varying strength along its axis) the aperture can be made substantially larger than in the case of a single lens. A method for the design of such a system is given. The use of this method to design a collimator is presented. More powerful lens systems can enhance the sensitivity, signal-to-noise ratio, and resolution of maser beam, molecular beam resonance, and state selecting scattering aparatus that commonly employ these lenses. (Author)