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INDEX photon mean free path

The photon conductivity equation was given by Equation 16.31. The mean free path for photons (1,) is the inverse of the absorption coefficient (a). Absorption coefficient and refractive index are independent of temperature. But they depend on frequency. [Pg.327]

Since each photon behaves by definition like every other photon in the field, certain criteria must be met. Each photon must be identical with every other photon of this class, and the system of particles with which this class of photons interacts must be composed of exactly the same kind of individual particles (in terms of dimensions, refractive index, etc.) in order that the separate interactions be identical. If more than one interaction per photon takes place, the order, number, and character of these interactions must be the same for each photon. In order to circumvent the inordinate complexity imposed by the last requirement, the volume element, dE, must be restricted to dimensions considerably smaller than the mean free path of an individual photon, so that only single interactions are possible in dV. [Pg.30]


See other pages where INDEX photon mean free path is mentioned: [Pg.156]    [Pg.156]    [Pg.625]    [Pg.10]    [Pg.250]    [Pg.263]    [Pg.625]    [Pg.327]    [Pg.356]    [Pg.312]    [Pg.410]   
See also in sourсe #XX -- [ Pg.326 ]




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