Phase-matched frequency doubling at photonic band edges: efficiency scaling as the fifth power of the length

Phys Rev Lett. 2002 Jul 22;89(4):043901. doi: 10.1103/PhysRevLett.89.043901. Epub 2002 Jul 3.

Abstract

By exploiting the unique properties of periodic stratified media we demonstrate simultaneously phase matching and enhancement of the optical field under second order nonlinear interaction. This leads to a second harmonic efficiency growth faster than the fifth power of the structure length, far better than the usual quadratic behavior associated with second order nonlinear effects.