  Measurements at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven
National Laboratory have revealed strong modification of the jet structure in
high-energy heavy-ion collisions, which can be attributed to the interaction of
hard scattered partons with the hot and dense QCD matter. The study of
heavy-quark (charm and bottom) production in such collisions provides key tests
of parton energy-loss models and, thus, yields profound insight into the
properties of the produced matter. The high-pT yield of heavy-flavor decay
electrons exhibits an unexpected large suppression. Since those single
electrons have contributions from charm and bottom decays an experimental
method is needed to investigate them separately. Heavy-flavor particle
correlations provide information about the underlying production mechanism. In
this contribution, a review on recent measurements on azimuthal correlations of
single electrons and open charmed mesons at RHIC and perspectives of such
measurements at the CERN-Large Hadron Collider (LHC) are presented. Moreover,
it has been shown that next-to-leading-order (NLO) QCD processes, such as gluon
splitting, become important at LHC energies. It will be demonstrated how this
contribution can be determined through the measurement of the charm content in
jets.
