作者: N. Mayama , S. Mikami , S. Ito , T. Kaneko , T. Iwata
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摘要: Recently, laser pulses on a three-dimensional atom probe have been used to induce field evaporation. The advantages of laser-pulse probes are application higher resistivity materials such as semiconductors and high mass resolution. Early studies were performed with nanosecond duration. All evidence from these early most recent using sub-picosecond indicated that the evaporation atoms by occurred thermal pulsing mechanism. On other hand, some experiments resulted in proposal athermal mechanisms (e.g., optical rectification) Thus, mechanism at apex needle specimen has not yet established. We report dependence voltage polarization angle femtosecond for metal specimens. [DOI: 10.1380/ejssnt.2009.70]