Electron-pumped high-efficiency semiconductor laser

Abstract

We report on an efficient semiconductor laser array pumped by a high-energy electron gun. A peak power of 350 kW in a 4-ns pulse has been measured from a 25-mm2 CdS laser. For the materials studied (CdS, ZnxCd1−xS, and ZnSxSe1−x), laser action has been obtained in the blue-green region of the spectrum.