Planck's Law

Version 1.0.0.0 (1.81 KB) by Jaap de Vries
SPECEXITANCE Calculates the spectral radiant exitance for a black body (W/m^2·µm)
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Updated 21 Aug 2012

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SPECEXITANCE Calculates the spectral radiant exitance for a black body based on Max Planck's law and expressed in (W/m^2·µm)

M = specexitance(LAMBDA, T) computes the spectral radiant exitance based on Max Planck's law based on a given temperature (T, in Kelvin) and wavelength (lamda in micro meter [10^-6 m])

M = specexitance(LAMBDA, T, n) computes the spectral radiant exitance based on Max Planck's law based on a given temperature (T, in Kelvin) and wavelength (lamda in micro meter [10^-6 m]) calulated in a medium
for which the refractive index is not 1.

The function does not exist for lamda == 0.

Cite As

Jaap de Vries (2026). Planck's Law (https://uk.mathworks.com/matlabcentral/fileexchange/37862-planck-s-law), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
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Version Published Release Notes
1.0.0.0