Tunable cyclotron-resonance laser in germanium

K. Unterrainer, C. Kremser, E. Gornik, C. R. Pidgeon, Yu L. Ivanov, E. E. Haller

Research output: Contribution to journalArticle


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.

Original languageEnglish
Pages (from-to)2277-2280
Number of pages4
JournalPhysical Review Letters
Issue number19
Publication statusPublished - 1990

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    Unterrainer, K., Kremser, C., Gornik, E., Pidgeon, C. R., Ivanov, Y. L., & Haller, E. E. (1990). Tunable cyclotron-resonance laser in germanium. Physical Review Letters, 64(19), 2277-2280. https://doi.org/10.1103/PhysRevLett.64.2277