supercollimation

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English

Etymology

From super- +‎ collimation.

Noun

supercollimation (plural supercollimations)

  1. (physics) The focusing of radiation into a finite-width beam that shows very little diffraction.
    • 2016, Alexander Cerjan, Aaswath Raman, Shanhui Fan, “Exceptional contours and band structure design in parity-time symmetric photonic crystals”, in arXiv:
      In photonic crystals, such thresholdless transitions are shown to yield significant control over the band structure of the system, and can result in all-angle supercollimation, a -superprism effect, and unidirectional behavior..