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Coherent effect in nonlinear excitation of low-temperature-grown GaAs by 1.5 μm pulses

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Abstract

The mechanism of the nonlinear photo-carrier generation in low-temperature-grown GaAs by 1.5 μm pulses was investigated by a double pulse experiment. The effect of intermediate excitation on the photo response was distinctly observed. Moreover, the effect was found to be largely coherent, contrary to the proposed model.

© 2013 Optical Society of America

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