Blue-Green Electron Beam Pumped Vertical-Cavity Surface-Emitting Laser Using MBE Grown Modulated ZnCdSe/ZnSe Superlattice

Abstract

The use of a broad-bandgap II-VI semiconductors and their ternary and quaternary alloys for vertical-cavity surface-emitting laser (VCSEL) fabrication open a new additional possibilities for their design and applications. In particular, one of the promising using is the realization of a large screen color high definition TV (HDTV) laser projection systems, and flat panel color displays [1,2]. One of the main advantages of the II-VI VCSEL's, in this case, is the possibility of the full color HDTV laser screen creation based only on this materials. The bulk II-VI compounds were used recently for the first successful demonstration of the laser cathode ray tube (LCRT) and color laser TV system [3]. However, one of the limitations of this scheme was the sufficiently high E-beam current threshold, in particular, for the room-temperature operation.