Approaching upper bounds to resonant nonlinear optical susceptibilities
with inverse-designed quantum wells
Approaching upper bounds to resonant nonlinear optical susceptibilities
with inverse-designed quantum wells
We develop a unified framework for identifying bounds to maximum resonant nonlinear optical susceptibilities, and for "inverse designing" quantum-well structures that can approach such bounds. In special cases (e.g. second-harmonic generation) we observe that known bounds, a variety of optimal design techniques, and previous experimental measurements nearly coincide. But for …