白宫：近期对伊朗的袭击是因为伊朗违反了谅解备忘录。

Researchers Shao Jianda and Jin Yunxia at the High-Power Laser Components Technology and Engineering Department, Shanghai Institute of Optics and Fine Mechanics (Chinese Academy of Sciences), published in Optics Letters a jigsaw-grating spectral beam-combining architecture for mid-infrared continuous-wave lasers. The design stitches multiple small-aperture sub-gratings distributed within an equivalent large-aperture grating footprint to combine multiple mid-IR beams efficiently, avoiding dependence on a single ultra-large-aperture grating, lowering grating manufacturing difficulty and improving multi-channel scalability. The team presents the approach as a technical path to scale mid-IR multi-channel spectral beam combining from tens of watts toward the hundred-watt level and as a reference for building high-power multi-band (visible–THz) laser platforms.

美国至7月11日当周初请失业金人数录得20.8万人，为2026年5月2日当周以来新低。