William H. Louisell

A soft X-ray laser utilizing charge exchange☆

Abstract A scheme for a soft x-ray laser utilizing electron pickup in an excited state of a multiply ionized species is presented. Using a current source of 10 to 20 mA, we estimate a yield of ≈ 106 x-ray quanta per pulse. The present scheme seems to be well within the realm of modern technology.

Review of Soft X-Ray Lasers Using Charge Exchange

This paper will review charge exchange vacuum ultraviolet and soft x-ray lasers using ion beams1,2. The basic idea of the reaction is that one avoids the rapid Auger rates characteristic of many other x-ray laser schemes by picking up an electron in the outer shell of a hydrogen-like, helium-like, or lithium-like ion (see Table I).

Transverse-mode discrimination in three-mirror resonators

By using a three-mirror arrangement, one of which is planar and two of which are spherical (paraboloidal), discrimination against transverse as well as longitudinal modes can be shown. Suitable design parameters are obtained.

Interacting Laser Beams in a Resonant Medium

For potential applications in scanning and measurement, we consider two interacting laser beams in an active nonlinear medium. The nonlinear medium generates two new beams at the same frequency and in directions different from the incident beams. The Kerr effect is used as a means of phase matching in the isotropic medium.