Ultrafast intersubband relaxation dynamics and coherent nonlinearity in GaN/AlN multiple quantum wells
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説明
We have investigated the ultrafast coherent dynamics of the intersubband transition in GaN/AlN multiple quantum wells, using a spectral resolved two-color pump-probe technique. We have found a significant spectrum change as a function of the delaytime τ. For negative delaytimes corresponding to τ 0, no measurable spectrum change has been observed. From the analysis of these results, we have estimated that intersubband transitions dephasing time is more than 100 fs measured at room temperature.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 6118 61180C-, 2006-02-09
SPIE
