Noun
The act corrugating; contraction into wrinkles or alternate ridges and grooves.
Source: Webster's dictionaryThe adjacent Fresnel zone is approximately given by: : The edge corrugation should not be much more than 10% of this width to see a close to ideal Arago spot. Source: Internet
The highest frequency (7554 Hz) was found in the “overblown” condition and n was presumed as one corrugation. Source: Internet
Note, that the 100 µm edge corrugation almost completely removes the central bright spot. Source: Internet
This corrugation gives rise to strong electric field gradients in the near-tip zone (on the order of an atomic radii or less from the tip), which during ionisation deflects ions away from the electric field normal. Source: Internet