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Since its discovery, nonlinear optics, whereby light can be used to control and interact with light, has generated enormous interest in many scientific areas [1]. Plasmonic modes, where light is bound to a metal-dielectric interface, and surface plasmon polaritons (SPPs) in particular, are known for their high field confinement and enhancements. Hence these modes are attractive candidates to increase...
Using slow-light photonic crystal waveguides in ultrafast pump-probe experiments, we demonstrate the adiabatic frequency conversion and ultrafast switching of telecoms light pulses on a silicon chip. By storing a 1.3 ps pulse in the slow-light modes of a photonic crystal waveguide, we are able to blue-shift it by 0.3 THz with high (80%) efficiency. We show that the shift occurs when the pulse adiabatically...
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