We report experimental and theoretical studies of spatio-temporal effects in arrays of nanosized silicon waveguides. Long wavelength Cherenkov radiation, which can be emitted only by solitons or quasi-soliton pulses and whose existence is sensitive to the precise excitations of the array has been measured experimentally and compared with theory.
Ding, W., De Nobriga, C., Hobbs, G., Wadsworth, W. J., Knight, J. C., Gorbach, A., Skryabin, D. V., Samarelli, A., Sorel, M., & De La Rue, R. M. (2010). Spectral signatures of spatio-temporal solitons in arrays of silicon-on-insulator photonic wires. Paper presented at Nonlinear Photonics 2010, Karlsruhe, Germany. https://doi.org/10.1364/NP.2010.NWA4