Author/Authors :
Sheppard، نويسنده , , J.M.H. and Sondhauss، نويسنده , , Jeffrey P. and Merlin، نويسنده , , R. and Bucksbaum، نويسنده , , P. and Lee، نويسنده , , R.W. and Wark، نويسنده , , J.S.، نويسنده ,
Abstract :
It has recently been proposed that X-rays can be switched on sub-picosecond time-scales by using laser-generated coherent optical phonons: The so called phonon Bragg switch. We present here detailed simulations of the effficiency of such a switch by solving the time-dependent generalized Takagi–Taupin equations utilizing a perturbative approach. We explore the switching efficiency in diffraction from the (004) planes of GaAs as a function of both excited phonon wave vector and amplitude.
