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Simulations of the phonon Bragg switch in GaAs |
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| Authors: | J.M.H. Sheppard P. Sondhauss P. Bucksbaum J.S. Wark |
| Affiliation: | a Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK b MAX-lab, Lund University, Box 118, 22100 Lund, Sweden c Department of Physics, The University of Michigan, Ann Arbor, MI 48109-1120, USA d LLNL, P.O. Box 808, Livermore, CA 94551, USA |
| 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. |
| Keywords: | 41.50.+h 72.10.D |
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