Femtosecond Exciton Dynamics and the Mot
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S. Hess; R.A. Taylor; K. Kyhm; J.F. Ryan; B. Beaumont; P. Gibart
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Article
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1999
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John Wiley and Sons
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English
β 174 KB
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We present resonant femtosecond pumpΒ±probe reflectance measurements of excitons in high quality wurtzite GaN epilayers for a range of lattice temperatures and various pump intensities. From the density dependence of the excitonic bleaching we find that the Mott density is n Mott 2X2 Γ 10 19 cm Γ3 .