Patent ID: 6011810
Filing Date: 2000-01-04
Classification: H01S

Abstract:
A far infrared tunable hot-hole laser comprising(a) a doped semiconductor,wherein said semiconductor is a germanium, silicon, silicon carbide, diamond, gallium arsenide, gallium phosphide, zinc selenide, or cadmium telluride crystal doped with a non-hydrogenic acceptor dopant having binding energies larger than the laser photons,wherein said acceptor dopant is selected from the group consisting of a Group I and Group II element,wherein said doped semiconductor crystal is cut into parallelepipeds, lapped and polish-etched; and(b) electric p-type contacts,wherein said electric contacts are formed by a dopant ion implantation,wherein the dopant implanted surfaces are rf-sputtered with a metal, andwherein the implanted dopants within the semiconductor are activated by annealing at about 300.degree. C. temperature in about one hour.