MINIATURIZATION OF p-GE LASERS PROGRESS TOWARD A TUNABLE, CONTINUOUS WAVE THz LASER

We have observed laser action in Al-doped germanium crystals with volumes as small as 0.025 cm 3 , one order of magnitude smaller than previously studied p-Ge laser crystals. The duty cycle was improved by two orders of magnitude up to 2x10 -3 . I mproved crystal and