Browsing by Author "Dumitrica, T."

Now showing items 1-2 of 2

    • Femtosecond-scale response of GaAs to ultrafast laser pulses RID A-7793-2008 
      Dumitrica, T.; Allen, Roland E. (American Physical Society, 2002)
      We present nonadiabatic simulations of the coherent response of crystalline GaAs irradiated by intense femtosecond-scale laser pulses. Above a threshold fluence, which corresponds to promotion of about 12% of the valence ...
    • Second-order susceptibility from a tight-binding Hamiltonian 
      Dumitrica, T.; Graves, JS; Allen, Roland E. (American Physical Society, 1998)
      Using a new formalism that modifies a tight-binding Hamiltonian to include interaction with a time-dependent electromagnetic field, we have obtained an analytical expression for the second-order susceptibility. This ...