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We describe a planar photonic circuit in silicon-on-insulator that efficiently generates pairs of non-degenerate photons in a single mode output channel through spontaneous four-wave mixing when pumped with 10's of µW of continuous-wave radiation at wavelengths near 1.5 µm. The structure is based on a set of three coupled photonic crystal microcavities, each of which is judiciously coupled to single...
We report on simulation results that shows optimum photon absorption by superconducting nanowires can happen at a fill-factor that is much less than 100%. We also present experimental results on high performance of our superconducting nanowire single photon detectors realized using NbTiN on oxidized silicon.
We demonstrate the lithography simulation for the fabrication of silicon photonic devices using deep-ultraviolet lithography. Once the distortions arising from the fabrication process are accounted for, the comparison between predicted and measured results is excellent.
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