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5 terms
Photonics Dictionary: D
Clear All Filters x
transmittance x
D x
diffuse transmittance
The ratio of diffusely transmitted flux to incident flux.
double-pass transmittance hologram
A hologram having an object wave that has been transmitted through the transparent object media to a mirror, reflected again and recorded on a medium.
density
->
optical density
A measure of the transmittance through an optical medium. Optical density equals the log to the base 10 of the reciprocal of the transmittance. where τλ is transmittance. In spectroscopy,...
diffuse density
The logarithm of the reciprocal of diffuse transmittance. Diffuse density results when a sample is diffusely illuminated.
double-beam spectrophotometer
A spectrophotometer in which the beam emitted by the radiation source is split into beams that travel through the sample and a reference cell and are subsequently recombined to fall on the detector....
Photonics Dictionary
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