  We present a method to tune the resonantly enhanced harmonic emission from
engineered potentials, which would be experimentally feasible in the purview of
the recent advances in atomic and condensed matter physics. The recombination
of the electron from the potential dependent excited state to the ground state
causes the emission of photons with a specific energy. The energy of the
emitted photons can be controlled by appropriately tweaking the potential
parameters. The resonant enhancement in high-harmonic generation enables the
emission of very intense extreme ultra-violet or soft x-ray radiations. The
scaling law of the resonant harmonic emission with the model parameter of the
potential is also obtained by numerically solving the time-dependent
Schr\"odinger equation in two dimensions.
