We demonstrate that interference of absorption pathways can be used to control resonant coupling of light to guided modes in a manner analogous to quantum coherent control or electronically induced transparency. We illustrate the control of resonant coupling that interference affords using a plasmonic test system where tuning the phase of a grating is sufficient to vary the transfer of energy into the surface plasmon polariton by a factor of over 106. We show that such a structure could function as a one-way coupler, and present a simple explanation for the underlying physics.

J. Gómez Rivas (Jaime)
Opt. Express

Rotenberg, N., Beggs, D. M., Sipe, J. E., & Kuipers, K. (2013). Resonant coupling from a new angle : coherent control through geometry. Opt. Express, 21(14), 16504–16513. doi:10.1364/OE.21.016504