Successful Real-Time Observation Of Atomic Motion with Sub-Nanometer Resolution (2/3) (IMAGE)
Caption
Figure 2: Time-resolved changes in (222) plane x-ray diffraction signal. (a) Changes in the x-ray diffraction peak from -10 ~ +1800 ps are shown. The horizontal axis is a wavenumber. (b) Changes in the x-ray diffraction peak from -10 ~ +30 ps are shown in magnified form. Before optical excitation, the diffraction peak is located at about 36 nm-1, while immediately after excitation the intensity begins to decrease and after a delay of about 4 ps, the peak starts to shift to smaller wavenumber. The shift reaches a maximum value for about a 20 ps delay. After about 1.8 ns, the peak reverts to its original position.
Credit
University of Tsukuba
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