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from IPython.display import display
from irprimer import *

An IR Primer

Temperatures



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Temperatures()









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Wavelengths()









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The EM modes exist with only discrete energies that are multiples of $hv$, where $h$ is Planck's constant and $v$ is frequency.

$$ I(\lambda,T) = \frac{2 hc^2}{\lambda^5}\frac{1}{ e^{\frac{hc}{\lambda kT}}-1} $$

It can be shown that the wavelength maximum for any temperature is

$${\lambda{max}}{\cdot}{T}=2898{\mu}m-K$$



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Planck()









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Fresnel()









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Density()









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slides()