Various interference pattern formations have been investigated using six countering laser beams that form a six-sided pyramid. Phase shift and amplitude variations among the interfering beams are very useful for designing interference patterns summarized here. The interference patterns are categorized into 32 unit figures, and structural changes with different thresholds are investigated in detail.
Huge numbers of 2D-or 3D-nanostructures can be generated by interfering ultra-short pulse laser processing in a single shot. Unit structures are nanowhiskers, nanoneedle, nanobump, nanomesh of metal. The distribution of these nanostructures are according to interference pattern, which can be controlled and designed by the number of beams, correlation angle, amplitude ratio and phase shifts between the beams. In this paper, we simulated the interference pattern with different combinations of these parameters. Our technique is useful for fabrication of metamaterials, in which designed unit structures are in designed periodic patterns.
Pressure dependences of saturation magnetization and the Curie temperature in both Sm2Fe17 and its nitrogenated specimens were investigated, and the pressure dependences were converted to lattice constantdependences using the data of the X-ray diffraction measurements. From an analysis of these data, it is concluded that the increase in the saturation magnetization by nitrogenation is due to the simple expansion of the lattice, while to explain the increase of TC by nitrogenation, some other mechanism must be taken into account. [Sm2Fe17Nx, pressure effect, Curie temperature, saturation magnetization, permanent magnet materials]
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.