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6 terms
Photonics Dictionary: A
Clear All Filters x
scattering x
A x
atomic scattering factor
The efficiency of scattering by an atom in a particular direction, expressed as: where AA is the amplitude of the wave from the atom and AE is the amplitude of the wave from a free electron.
ABG
The ABg model or Harvey-Shack is a method of describing bidirectional scattering from isotropic or polished surfaces.
abrasion mark
Optical surface damage due to abrasive rubbing. Abrasion damage affects are less than the thickness of the optical coating layers. Surface investigation may be achieved by aluminization of the coated...
atmospheric attenuation
The reduction in luminance of a light beam due to absorption and scattering as it passes through the atmosphere.
attenuation
Attenuation refers to the gradual loss or reduction of intensity, force, or magnitude of a particular property as it propagates through a medium or travels over a distance. This concept is prevalent...
attenuation coefficient
The rate of diminution of average optical power and the sum of the scattering and absorption coefficients.
Photonics Dictionary
A
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