  It has very recently been suggested that asymmetric coupling of
electromagnetic fields to thermal reservoirs under nonequilibrium conditions
can produce unexpected oscillatory behavior in the local photon statistics in
layered structures. Better understanding of the predicted phenomena could
enable useful applications related to thermometry, noise filtering, and
enhancing optical interactions. In this work we briefly review the field
quantization and study the local steady state temperature distributions in
optical cavities formed of lossless and lossy media to show that also local
field temperatures exhibit oscillations that depend on position as well as the
photon energy.
