Direction dependence of electron excitation in dielectrics by short pulse laser

Otobe, Tomohito

I solve the time-dependent Khon-Sham equation by real-time and -space method to simulate the electron excitation by intense short pulse laser. I found that the electron excitation possibility is changed as rotating the direction of polarization to the crystal. My simulation indicates that this change of electron excitation probability is depends on the change of the region of electron excitation in Bloch phase space. This result indicates also the probe of small region of the crystalline solid and control of electron excitation process by laser field.