Gaussian beam

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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.
References in periodicals archive ?
the product of beam radius at the beam waist with the far-field beam divergence angle
The excellent beam parameter (half beam waist x half divergence) of less than 200 mmmrad both in fast and slow axis, makes fiber-coupling possible.
The excellent beam parameter (half beam waist x half divergence) of less than 200 mm-mrad both in fast and slow axis, makes fiber-coupling possible.
0] is the well depth, x and y are the two axes perpendicular to the laser path, and a and b are the beam waist dimensions.
the peak of the Gaussian laser beam profile), which is a factor of 33% higher than the intensity averaged over the beam waist.
2] radius at the beam waist and [lambda] is the laser wavelength [18].
where z is the distance along the axis from the beam waist and [z.
For the NIST depositions, we can take f to be approximately equal to the laser beam waist, or 0.