| 4 | Depolarization of intense laser beams by dynamic plasma density gratings显示文摘As a typical plasma-based optical element that can sustain ultra-high light intensity,plasma density gratings driven by intense laser pulses have been extensively studied for wide applications.Here,we show that the plasma density grating driven by two intersecting driver laser pulses is not only nonuniform in space but also varies over time.Consequently,the probe laser pulse that passes through such a dynamic plasma density grating will be depolarized,that is,its polarization becomes spatially and temporally variable.More importantly,the laser depolarization may spontaneously take place for crossed laser beams if their polarization angles are arranged properly.The laser depolarization by a dynamic plasma density grating may find application in mitigating parametric instabilities in laser-driven inertial confinement fusion. | Y.X.Wang S.M.Weng P.Li Z.C.Shen X.Y.Jiang J.Huang X.L.Zhu H.H.Ma X.B.Zhang X.F.Li Z.M.Sheng J.Zhang | 2023 | High Power Laser Science and Engineering2023，11，3： | 0 |
| 5 | Formation and Morphology of Anodic Oxide Films of Ti显示文摘The morphology and structure of the oxide films of Ti in H3PO4 were investigated by galvanos tatic anodization, SEM and XRD. The oxide film grew from some pores in the grooves to layered microdomains as increasing anodizing voltage. The crystallinity of the oxide films decreased with the increase of the concentration of the electrolyte. The model has been proposed for the growth of the oxide films by two steps, i.e. by uniform thickening and by local deposition. | Kyo-Han Kim X.L.Zhu and Won-Woo Son Department of Dental Biomaterials, Kyungpook National University, Taegu 700-422, Korea Yong-Soo Jeong Department of Surface Engineering, Korea institute of Machinery and Materials, Changwon, Korea | 2001 | Journal of Materials Science & Technology2001，17，1： | 0 |
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