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physics.optics2022
Non-reciprocal emissivity, partial coherence, and amplification of internal energy from photon recycling when thermal radiation is sourced within matter
Geoff B Smith, Angus R Gentle, Matthew D Arnold
Photons excited into ground state modes at finite temperature display partitioning among photon phases, lifetimes and distances travelled since creation. These distributions set th…
physics.optics2021
The Stefan-Boltzmann constant re-visited for photons thermally generated within matter
G. B. Smith, A. R. Gentle, M. D. Arnold
The Stefan-Boltzmann constant arose from photon densities inside a cavity, but inside matter photon mode densities are material specific. Photon speeds are governed by the mode the…