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Forums
Physics
Quantum Physics
Radiation from a dielectric body
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[QUOTE="Charles Link, post: 5489915, member: 583509"] I think it takes more than a dielectric function and/or oscillators. It is necessary to have anharmonic terms (essentially non-linear in the restoring force or non-quadratic in the energy) in the Hamiltonian, which may give you a complex dielectric function (with imaginary components) and a complex index of refraction. A completely harmonic Hamiltonian would give you a completely transparent dielectric and thereby the emissivity would likely be near zero. I think the solid state physics book by Ashcroft and Mermin discusses the anharmonic Hamiltonian. I don't have any handy references that have the precise derivation you are looking for, but hopefully this is helpful. [/QUOTE]
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Forums
Physics
Quantum Physics
Radiation from a dielectric body
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