Observations of temporal group delays in slow-light multiple coupled photonic crystal cavities
Observations of temporal group delays in slow-light multiple coupled photonic crystal cavities
We demonstrate temporal group delays in coherently coupled high-Q multicavity photonic crystals, in an all-optical analog to electromagnetically induced transparency. We report deterministic control of the group delay up to 4× the single cavity lifetime in our room-temperature chip. Supported by three-dimensional numerical simulations and theoretical analyses, our multipump beam …