Femtosecond optical spectroscopy studies of high- pressure-grown (Al,Ga)N single crystals


We present our time-resolved studies of the carrier dynamics in high quality Al0.86Ga0.14N single crystals, grown using a solution technique in a high nitrogen gas pressure autoclave. Our optical measurements were performed using a femtosecond, pump-probe spectroscopy, by invoking the two-photon-absorption-type process and scanning the normalized transient… (More)


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