We report strong narrow-band stimulated far-infrared cyclotron-resonance emission from the light holes in germanium in crossed electric and magnetic fields. The emission spectrum consists of a single line which is linearly tunable with magnetic field. The gain of the cyclotron-resonance laser is determined to be 0.05±{}0.02 cm^-1. For the first time we have identified the lasing transition to be the n=2 to n=1 Landau-level transition of the b-set light holes by a comparison of absorption and emission spectra with calculations of the band structure including nonparabolicity corrections.
No takes yet. Share an insight, caveat, or question.
Unterrainer et al. (1990) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: