Ultrafast dynamics of nonlinear absorption in low-temperature-grown GaAs
Ημερομηνία
1996Source
Applied Physics LettersVolume
68Issue
18Pages
2544-2546Google Scholar check
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
We present the results of a study of the subpicosecond dynamic behavior of optically induced absorption changes in low-temperature-grown GaAs. We show that the observed behavior is dominated by mid-gap trap states, and can be accurately modeled by the rate equations previously developed to describe quasi-cw results. Our data give the first approximate values for trap emptying times in this material. © 1996 American Institute of Physics.