Optical gain and lasing of trions in delta-doped ZnSe quantum wells

Joachim Puls; G. V. Mikhailov; Fritz Henneberger; Dmitrii R. Yakovlev; Andreas Waag

doi:10.1117/12.514353

11 June 2003 Optical gain and lasing of trions in delta-doped ZnSe quantum wells

Joachim Puls, G. V. Mikhailov, Fritz Henneberger, Dmitrii R. Yakovlev, Andreas Waag

Proceedings Volume 5023, 10th International Symposium on Nanostructures: Physics and Technology; (2003) https://doi.org/10.1117/12.514353
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

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.

Citation Download Citation

Joachim Puls, G. V. Mikhailov, Fritz Henneberger, Dmitrii R. Yakovlev, and Andreas Waag "Optical gain and lasing of trions in delta-doped ZnSe quantum wells", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); https://doi.org/10.1117/12.514353

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