Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5403524 | Journal of Luminescence | 2008 | 5 Pages |
Abstract
Concerning lasing, we discuss the role of excitonic processes and the recombination in an inverted electron-hole plasma (EHP). While excitonic processes seem well justified at lower temperatures and densities, doubts arise concerning the concept of excitonic lasing at RT in ZnO. The densities at laser threshold at RT are frequently close to the Mott density or above but below the density at which population inversion in an EHP is reached. We suggest alternative processes which can explain stimulated emission in this density regime in an EHP at RT.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
C. Klingshirn, J. Fallert, O. Gogolin, M. Wissinger, R. Hauschild, M. Hauser, H. Kalt, H. Zhou,