Determination of the far-infrared emission characteristic of a cyclotron p-germanium laser by use of a superconducting Nb detector

We studied the far-infrared emission characteristics of a cyclotron p-germanium laser using a broad-band superconducting Nb film detector. For magnetic fields between ∼25 kOe and ∼50 kOe, emission in a frequency range from ∼50 cm -1 to ∼100 cm -1 with maximum intensity around 90 cm -1 was obtained....

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Bibliographic Details
Published in:Solid state communications 1991, Vol.80 (7), p.503-506
Main Authors: Bespalov, A.V., Gol'tsman, G.N., Semenov, A.D., Renk, K.F.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Summary:We studied the far-infrared emission characteristics of a cyclotron p-germanium laser using a broad-band superconducting Nb film detector. For magnetic fields between ∼25 kOe and ∼50 kOe, emission in a frequency range from ∼50 cm -1 to ∼100 cm -1 with maximum intensity around 90 cm -1 was obtained. We determined, for fixed magnetic fields, electric field dependences of the emission intensity taking into account that the total electric field is a sum of the applied and the Hall electric field. An analysis of the emission intensity characteristic gives evidence that transitions between the two lowest Landau levels of light holes are responsible for the laser action.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(91)90060-9