Observation of two emission lines in the p-type-Ge cyclotron resonance laser

Author

Heiss, W. ; Unterrainer, Karl ; Gornik, Erich

Author_Institution

Inst. fur Festkorperelektronik, Tech. Univ. Wien, Austria

Volume

30

Issue

12

fYear

1994

fDate

12/1/1994 12:00:00 AM

Firstpage

2778

Lastpage

2780

Abstract

The stimulated far infrared emission of a p-type-Ge cyclotron resonance laser is investigated in the frequency range between 60 cm^-1 and 80 cm^-1. If the applied electric field is adjusted to achieve maximum output intensities, a single magnetic field tunable emission line is observed. By detuning the electric field a second line occurs in the laser spectrum. The presence of this line is governed by the amount of mixing between the Landau levels of the light and heavy holes induced by the electric field. From a comparison of the observed emission frequencies with calculated transition energies, a second laser transition is identified which appears in addition to the dominant n=1 to n=0 Landau level transition of the b-set

Keywords

Landau levels; cyclotron resonance; elemental semiconductors; germanium; infrared sources; laser theory; laser transitions; laser tuning; population inversion; semiconductor lasers; stimulated emission; Ge; Landau level transition; Landau levels; applied electric field; calculated transition energies; detuning; electric field; emission lines; frequency range; heavy holes; laser spectrum; laser transition; light holes; maximum output intensities; observed emission frequencies; p-type-Ge cyclotron resonance laser; single magnetic field tunable emission line; stimulated far infrared emission; Chromium; Cyclotrons; Frequency; Laser transitions; Magnetic field measurement; Magnetic fields; Magnetic resonance; Optical mixing; Stimulated emission; Tunable circuits and devices;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.362733

Filename

362733