The effects of diffraction of light were first carefully observed and characterized by Francesco Maria Grimaldi, who also coined the term diffraction, from the Latin diffringere, 'to break into pieces', …

衍射（英语：diffraction）是指波遇到障碍物时偏离原来直线传播的物理现象。 在经典物理学中，波在穿过狭缝、小孔或圆盘之类的障碍物后会发生不同程度的弯散传播。

If the first term is large in comparison to the second term, the diffraction dominates over the nonlinear phenomena, leading to defocusing of the ripple.

Oct 17, 2025 · Diffraction, the spreading of waves around obstacles. Diffraction takes place with sound; with electromagnetic radiation, such as light, X-rays, and gamma rays; and with very small moving …

Nov 17, 2022 · Diffraction is the bending or spreading of light waves around an obstacle. The obstacle can be an aperture or slit whose size is approximately the same as the wavelength of light.

Diffraction is the spreading of a wave as it passes through a gap or around an edge. Diffraction effects are greatest when waves passes through a gap with a width roughly equal to their wavelength.

Diffraction can send a wave around the edges of an opening or other obstacle. A single slit produces an interference pattern characterized by a broad central maximum with narrower and dimmer maxima to …

Dec 24, 2024 · Revision notes on Diffraction for the Cambridge (CIE) A Level Physics syllabus, written by the Physics experts at Save My Exams.

此外，在 电子显微镜 或 X射线形貌器 （X-ray topography device）中，衍射衬度（diffraction contrast）可以用来检验晶体中的缺陷以及局部应变场（local strain field），进行金属薄膜材料的相 …

光在传播过程中，遇到障碍物或小孔时，光将偏离直线传播的路径而绕到障碍物后面传播的现象，叫光的衍射（Diffraction of light）。