  High energy photons created from back-scattering of jets in quark gluon
plasma are a valuable probe of the temperature of the plasma, and of the energy
loss mechanism of quarks in the plasma. An unambiguous identification of these
photons through single inclusive photon measurements and photon azimuthal
anisotropies has so far been elusive. We estimate the spectra of
back-scattering photons in coincidence with trigger jets for typical kinematic
situations at the Large Hadron Collider and the BNL Relativistic Heavy Ion
Collider. We find that the separation of back-scattering photons from other
photon sources using trigger jets depends crucially on our ability to reliably
estimate the initial trigger jet energy. We estimate that jet reconstruction
techniques in heavy ion experiments need to be able to get to jet
$R_{AA}\gtrsim 0.7$ in central collisions for viable back-scattering signals.
