Summary form only given. The nonlinear optical properties of highly excited InGaN/GaN multiple quantum well (MQW) blue laser structures have been studied using nondegenerate optical pump-probe spectroscopy, energy selective optically pumped stimulated emission (SE) spectroscopy, and variable stripe gain spectroscopy. The evolution of the near band edge transitions of the InGaN active layers were monitored using nondegenerate optical pump-probe transmission spectroscopy as the number of photoexcited free carriers was increased beyond that necessary to achieve population inversion. Clear bleaching of band tail states was observed with increasing optical excitation.
Nonlinear optical spectroscopy of highly excited InGaN-GaN multiple quantum well blue laser structures
1999-01-01
298595 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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