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Proceedings Paper

Optical gain and lasing of trions in delta-doped ZnSe quantum wells
Author(s): Joachim Puls; G. V. Mikhailov; Fritz Henneberger; Dmitrii R. Yakovlev; Andreas Waag
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Paper Abstract

The observation of optical gain at the trion transition of n-doped ZnSe quantum wells is reported. The specific optical coupling between the trion and electron band gives rise to stimulated emission on the low-energy wing of the trion photoluminescence band without degeneracy and inversion in the total particle numbers. Gain values as large as 104 cm-1 are found for excitation intensities of some kW/cm2. A calculation of the absorption-gain crossover photon energy based on a kinetically determined equilibrium of excitons, trions and electrons with a common carrier gas temperature describes the experimental data well.

Paper Details

Date Published: 11 June 2003
PDF: 3 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.514353
Show Author Affiliations
Joachim Puls, Humboldt-Univ. zu Berlin (Germany)
G. V. Mikhailov, A.F. Ioffe Physico-Technical Institute (Russia)
Fritz Henneberger, Humboldt-Univ. zu Berlin (Germany)
Dmitrii R. Yakovlev, A.F. Ioffe Physico-Technical Institute and Univ. Wuerzburg (Germany)
Andreas Waag, Univ. Ulm (Germany)


Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology

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