Monochromator Selection Guide When selecting a monochromator, the following 3 principal, but by no means sole, considerations should be taken into account: the spectral range of operationthe…
Measurement of Spectral Radiant Flux Symbol: Φλ Unit: W∙nm-1Accounting for the total optical emission of a sources, spectral radiant flux is often used to characterise luminous efficiency of…
Measurement of Spectral Radiance Spectral radiance in a given direction, at a given point of a real or imaginary surface is defined by the equation: Symbol: Ll Unit: W∙m-2∙sr-1∙nm-1 Where dΦ(λ)…
Measurement of Spectral Radiant Intensity Symbol: I Unit: W∙sr-1∙nm-1 Spectral radiant Intensity in a given direction is defined by the equation: Where dΦ(λ) is the spectral radiant power…
Measurement of Spectral Irradiance Where dΦ(λ) is the radiant power in a wavelength interval dλ, incident on an element of a surface (from the hemipshere above that surface), by the area dA of…
