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Gaussian beam
(redirected from Diffraction limited beam)

   Also found in: Wikipedia 0.03 sec.
Gaussian beam [′gau̇s·ē·ən ′bēm]
(electromagnetism)
A beam of electromagnetic radiation whose wave front is approximately spherical at any point along the beam and whose transverse field intensity over any wave front is a Gaussian function of the distance from the axis of the beam.


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